Targeted killing (also known as Selective assassination) is the premeditated killing of an individual by a state organization or institution outside a judicial procedure or a battlefield.
Targeted killings were employed extensively by death squads in El Salvador, Nicaragua, Colombia, and Haiti within the context of civil unrest and war during the 1980s and 1990s. Targeted killings have also been used in Somalia, Rwanda, and in the Balkans during the Yugoslav Wars. Currently the US government practices targeted killings semi-publicly, as with the killing of Osama Bin-Laden and Al-Awlaki. Targeted killings have also been used by narcotics traffickers.
Use of targeted killings by conventional military forces became commonplace in Israel during and after the Second Intifada, when Israeli security forces used the tactic to kill Palestinian opponents. Though initially opposed by the Bush Administration, targeted killings have become a frequent tactic of the United States government in the War on Terror. Instances of targeted killing by the United States that have received significant attention include the killing of Osama bin Laden and of American citizen Anwar al-Aulaqi in 2011. Under the Obama administration use of targeted killings has expanded, most frequently through use of combat drones operating in Afghanistan, Pakistan or Yemen.
The legality of targeted killing is disputed. Some academics, military personnel and officials describe targeted killing as legitimate within the context of self-defense, when employed against terrorists or combatants engaged in asymmetrical warfare. They argue that drones are more humane and more accurate than manned vehicles. Others, including academics such as Gregory Johnsen and Charles Schmitz, twenty-six members of Congress, some media sources (Jeremy Scahill, James Traub), civil rights groups like the American Civil Liberties Union and ex-CIA station chief in Islamabad, Robert Grenier have criticized targeted killings as similar to assassinations or extrajudicial killings, which are illegal within the United States and under international law.
- 1 Central and South America
- 2 Africa
- 3 Europe
- 4 Asia
- 5 North America
- 6 Other
- 7 Legality
- 8 See also
- 9 References
- 10 Further reading
Central and South America
The United States Department of State's Human Rights Report in 1994 decried such killings, noting that in Haiti, "right-wing thugs, closely allied with the military, assassinated the legitimately appointed justice minister and conducted many other targeted killings."
In 1986, the human rights group Americas Watch released a report stating that death squads and armed forces under President José Napoleón Duarte in El Salvador had carried out 240 targeted killings throughout 1985. The report relied upon figures provided by the Roman Catholic Church and included allegations of torture and summary executions.
Targeted killings linked to the drug trade and paramilitary organizations including FARC and the United Self-Defense Forces of Colombia (AUC) resulted in large numbers of deaths among human rights and political activists, and women and children, throughout the 1990s.
In Somalia and Rwanda
During fighting in the Somali Civil War, Sean Devereux described torture and killing by warlords in Kismayo as "targeted killings, a kind of ethnic cleansing," shortly before his assassination. Also in Africa, Reuters described "targeted killings of political opponents" by Hutu army and militias in Rwanda during the Rwandan Genocide. The American State Department reported the "politically targeted killings" were a prelude to general massacres in Rwanda.
In Bosnia and Serbia
Referring to human rights abuses during the Bosnian War, the U.S. State Department noted politically or ethnically motivated "targeted killings" in Bosnia in Section 1a., "Political and Other Extrajudicial Killing," of its 1993 report on human rights practices in Bosnia and Herzegovina. Targeted killings were also reported by Serbian and Albanian forces during the Kosovo War. Both wars involved largescale targeted killings of journalists.
Use by Iranian government
Alleged and confirmed assassinations, were reported to have been conducted by the Islamic State of Iran and previously by the Pahlavi regime. It includes attempts on notable persons who were reported to have been specifically targeted by the various Iranian security and intelligence, most notably against Kurdish dissidents of the Kurdish Democratic Party of Iran in 1980s and 1990s. Prior to the establishment of the Islamic State in 1979, the Organization of Intelligence and National Security also allegedly performed a number of political motivated assassinations against dissidents and opposition leaders.
Use by the Israeli Government
During the First Intifada Palestinian uprising, the Palestinian human rights group Al Haq condemned Israeli soldiers for what they described as "deliberate, cold-blooded... targeted" killings of Palestinians in the West Bank and Gaza Strip. Human rights group Middle East Watch alleged in 1993 that interviewed Israeli soldiers had targeted often unarmed Palestinians, some under the age of 16, for "premeditated assassinations" or targeted killing, a charge denied by Israeli officials. The allegations included the execution of Palestinians in custody.
Controversy over targeted killings continued during the Second Intifada. Palestinians charged that individuals belonging to the group Hamas and shot in targeted killings were being assassinated. Israeli officials initially accepted responsibility for only some of the killings, and Israeli media termed the practice a "liquidations policy," whereas Palestinians called it "state terrorism." In January 2001 Israeli officials confirmed "the practice of targeted assassinations." Conflict in Israeli over the legality of the practice centered on the case of Dr. Thabet Thabet, assassinated as he left his home on New Year's Eve. Dr. Thabet was alleged by the Israeli military to be a senior local leader of Fatah and plotting attacks against Israelis in the West Bank. A dentist, Dr. Thabet was also a friend of many Israeli peace activists and considered to be one himself; Israeli activists called the killing "a crime," "Mafia-style," and "immoral." Ephraim Sneh, then Israeli Deputy Prime Minister, described the policy as "effective, precise and just."
The Washington Post commented that Israeli policy of targeted killing during the Second Intifada expanded upon previous policies, targeting not only terrorists but also those thought to direct or coordinate them. Another controversial killing, which occurred following the Bush Administration's condemnation of the practice, was that of Mahmoud Madani, a leader of Hamas shot while leaving a mosque in the Balata refugee camp. The Israeli military suspected Madani of plotting bombings in Israel.
At that time, spokesman for the American State Department Richard Boucher condemned both violence by Palestinians and targeted killings by Israelis during a State Department news briefing. American Secretary of State Colin Powell registered his opposition to "a policy of targeted killings" and the U.S. State Department urged Israel to stop them.
Use by the United States Government
While article 2(4) of the United Nations Charter prohibits the threat or use of force by one state against another, two exceptions are relevant to the question of whether targeted killings are lawful: (1) when the use of force is carried out with the consent of the host state; and (2) when the use of force is in self-defense in response to an armed attack or an imminent threat, and where the host state is unwilling or unable to take appropriate action. The legality of a targeted drone strike must be evaluated in accordance with international humanitarian law (IHL), including the fundamental principles of distinction, proportionality, humanity, and military necessity.
The part of The Charter of the United Nations that regulates "action with respect to threats to the peace, breaches of the peace, and acts of aggression" is Chapter VII (articles 39-50), which requires that it is the Security Council that determines any threat to peace and decides on measures to be taken to maintain or restore peace. Article 51 mentions the only exception - members of the United Nations have "the inherent right of individual or collective self-defence if an armed attack occurs against a Member of the United Nations, until the Security Council has taken measures necessary to maintain international peace and security."
The tactic raises complex questions as to the legal basis for its application, who qualifies as an appropriate "hit list" target, and what circumstances must exist before the tactic may be employed. Opinions range from people considering it a legal form of self-defense that reduces terrorism, to people calling it an extrajudicial killing that lacks due process, and which leads to more violence. Methods used have included firing a Hellfire missile from an AH-64 Apache attack helicopter (Israel), or a Predator or Reaper drone (an unmanned, remote-controlled plane), detonating a cell phone bomb, and long-range sniper shooting. Countries such as the U.S. (in Pakistan and Yemen) and Israel (in the West Bank and Gaza) have used targeted killing to kill members of groups such as Al-Qaeda and Hamas.
Targeted killing operations, according to Harvard Law School Professors Gabriella Blum and Philip Heymann, amplify the tension between addressing terrorism as a crime verses addressing terrorism as war. Governments pursuing a law enforcement strategy punish persons for their individual guilt, which must be proven in a court of law, where the accused enjoys the protections of due process guarantees. Governments in the midst of war, on the other hand, are legally obliged to take advantage of relaxed peacetime constraints on the use of deadly force. Enemy combatants are targeted and killed not because they are guilty, but because they are potentially lethal agents of a hostile party. No advance warning is necessary, no attempt to arrest or capture is required, and no effort to minimize casualties among enemy forces is demanded by law. Despite this inherent tension, the United States has made targeted killing—the deliberate assassination of a known terrorist outside the country’s territory, usually by airstrike—an essential part of its counter-terrorism strategy. Hence, the United States has justified the killing of terrorists under a war paradigm. "Using the war paradigm for counter-terrorism enabled government lawyers to distinguish lethal attacks on terrorists from prohibited assassinations and justify them as lawful battlefield operations against enemy combatants, much like the uncontroversial targeted killing of Japanese Admiral Isoroku Yamamoto while he was traveling by a military airplane during World War II."
The domestic legislative basis offered to justify drone strikes is the Authorization for Use of Military Force Against Terrorists (AUMF), a joint resolution of both houses of Congress passed exactly one week after September 11, 2001. The AUMF permits the President to use "all necessary and appropriate force against those nations, organizations, or persons he determines planned, authorized, committed, or aided the terrorist attacks that occurred on 11 September 2001, or harbored such organizations or persons."
In early 2010, with President Barack Obama's approval, Anwar al-Awlaki became the first U.S. citizen to be approved for targeted killing by the Central Intelligence Agency (CIA). Awlaki was killed in a drone strike in September 2011.
A Reuters report analysing the killing of 500 "militants" by US drones between 2008 and 2010 found that only 8% of those killed were mid- to top-tier organisers or leaders; the rest were unidentified foot soldiers.
Obama Administration position on combat drones
|“||The United States is in an armed conflict with al-Qa’ida, the Taliban, and associated forces, in response to the 9/11 attacks, and we may also use force consistent with our inherent right of national self-defense.There is nothing in international law that bans the use of remotely piloted aircraft for this purpose or that prohibits us from using lethal force against our enemies outside of an active battlefield, at least when the country involved consents or is unable or unwilling to take action against the threat.||”|
In a speech titled "The Ethics and Efficacy of the President’s Counterterrorism Strategy" John O. Brennan, Assistant to the President for Homeland Security and Counterterrorism, outlined on 30 April 2012 at the Wilson Center the use of combat drones to kill members of al-Qaeda by the US Federal government under President Barack Obama. John Brennan acknowledged for the first time that the US government uses drones to kill selected members of al-Qaeda.
He justified the use of drones both from domestic law and international law point of view. With respect to domestic law Brennan stated that "as a matter of domestic law, the Constitution empowers the President to protect the nation from any imminent threat of attack. The Authorization for Use of Military Force (AUMF) passed by Congress after the September 11 attacks authorizes the president “to use all necessary and appropriate force” against those nations, organizations and individuals responsible for 9/11. There is nothing in the AUMF that restricts the use of military force against al-Qa’ida to Afghanistan." And he further said: "As a matter of international law, the United States is in an armed conflict with al-Qa’ida, the Taliban, and associated forces, in response to the 9/11 attacks, and we may also use force consistent with our inherent right of national self-defense. There is nothing in international law that bans the use of remotely piloted aircraft for this purpose or that prohibits us from using lethal force against our enemies outside of an active battlefield, at least when the country involved consents or is unable or unwilling to take action against the threat."
The speech came a few days after Obama authorized the CIA and the U.S. Joint Special Operations Command (JSOC) to fire on targets based solely on their intelligence "signatures" — patterns of behavior that are detected through signals intercepts, human sources and aerial surveillance, and that indicate the presence of an important operative or a plot against U.S. interests. Under the previous rules the CIA and the US military were only allowed to use drone strikes against known terrorist leaders whose location could be confirmed and who appeared on secret CIA and JSOC target lists.
The justification by Brennan built upon remarks by US top officials like the State Department's top lawyer Harold Hongju Koh, US Attorney General Eric Holder, the US Defense Department general counsel Jeh Johnson and President Obama himself who defended the use of drones outside of so-called "hot battlefields" like Afghanistan.
In 2011/2012 the process for selecting targets outside of warzones was altered so that power was concentrated in the hands of a group of people in the White House centered around White House counterterror chief John Brennan. Under the new plan, Brennan's staff compiles the potential target list and runs the names past agencies such as the State Department at a weekly White House meeting. According to the New York Times, President Obama has placed himself at the helm of a top secret process to designate terrorists for kill or capture, reserving the final say on approving lethal action, and signs off every strike in Yemen, Somalia and Pakistan.
U.S. Congressional oversight over the targeted killing operations increased as the drone program intensified under Obama Administration. Once a month, a group of staff members from the House and Senate intelligence committees watch videos of the latest drone strikes, review intelligence that was used to justify each drone strike and sometimes examine telephone intercepts and after-the-fact evidence, such as the CIA's assessment of who was hit. The procedure used by House and Senate intelligence committees to monitor CIA drone strikes was set up largely at the request of Senator Dianne Feinstein who became determined to ensure that it was as precise as the CIA had been claiming. "That's been a concern of mine from the beginning," Feinstein said in little-noticed comments after the raid that killed Osama bin Laden in May 2011. "I asked that this effort be established. It has been. The way in which this is being done is very careful." Feinstein explained how the oversight works in general. "We receive notification with key details shortly after every strike, and we hold regular briefings and hearings on these operations," Feinstein wrote in May in a letter sent in response to a column that ran in The Los Angeles Times questioning the oversight of drone strikes. "Committee staff has held 28 monthly in-depth oversight meetings to review strike records and question every aspect of the program including legality, effectiveness, precision, foreign policy implications and the care taken to minimize noncombatant casualties." If the congressional committees objected to something, the lawmakers could call CIA leaders to testify in closed investigative hearings. If unsatisfied, they could pass legislation limiting the CIA's actions.
Congressional criticism of drone strikes has been rare. But in June 2012, 26 lawmakers, all but two of them Democrats, signed a letter to Obama questioning so-called signature strikes, in which the U.S. attacks armed men who fit a pattern of behavior that suggests they are involved in terrorist activities. Signature strikes have been curbed in Pakistan, where they once were common, but in 2012 Obama gave the CIA permission to conduct them in Yemen, where an Al Qaeda affiliate that has targeted the United States has established a safe haven in the south. The lawmakers expressed concern that signature strikes could kill civilians. They added: "Our drone campaigns already have virtually no transparency, accountability or oversight."
While the Bush administration had put emphasis on killing significant members of al Qaeda the use of combat drones has undergone a quiet and unheralded shift during the Obama Administration to focus increasingly on killing Taliban foot soldiers according to CNN National Security Analyst Peter Bergen. Bergen noted: "To the extent that the targets of drone attacks can be ascertained, under Bush, al Qaeda members accounted for 25% of all drone targets compared to 40% for Taliban targets. Under Obama, only 8% of targets were al Qaeda compared to just over 50% for Taliban targets."
Facing the possibility of defeat in the 2012 Presidential election the Obama Administration accelerated work in the weeks before the election to develop explicit rules for the targeted killing of terrorists by unmanned drones, so that a new president would inherit clear standards and procedures. The work to codify U.S. drone policy began in summer 2011. "There was concern that the levers might no longer be in our hands," said one unnamed U.S official. With a continuing debate about the proper limits of drone strikes, Obama did not want to leave an "amorphous" program to his successor, the official said. The effort, which would have been rushed to completion by January had Mitt Romney won, will now be finished at a more leisurely pace, the official said. "One of the things we’ve got to do is put a legal architecture in place, and we need Congressional help in order to do that, to make sure that not only am I reined in but any president’s reined in terms of some of the decisions that we’re making," Obama said and added that "creating a legal structure, processes, with oversight checks on how we use unmanned weapons, is going to be a challenge for me and my successors for some time to come." U.S. President Obama also expressed wariness of the powerful temptation drones pose to policy makers. "There’s a remoteness to it that makes it tempting to think that somehow we can, without any mess on our hands, solve vexing security problems," he said.
In response lawsuits brought by The New York Times and the American Civil Liberties Union seeking to use the Freedom of Information Act to make public more details about the legal basis for the drone programs U.S. District Court Judge Colleen McMahon ruled at the end of December 2012 that the U.S. Government has no legal duty to disclose legal opinions justifying the use of drones to kill suspected terrorist operatives abroad. While noting that a more detailed disclosure of the administration's legal rationale "would allow for intelligent discussion and assessment of a tactic that (like torture before it) remains hotly debated", McMahon came to the conclusion that the Freedom of Information Act did not permit her to require such transparency.
In a letter dated 22 May 2013 to the chairman of the U.S. Senate Judiciary committee, Patrick J. Leahy, U.S. attorney general Eric Holder wrote that the United States will use lethal force by combat drones "in a foreign country against a U.S. citizen who is a senior operational leader of al Qa'ida or its associated forces, and who is actively engaged in planning to kill Americans, in the following circumstances: (1) the U.S. government has determined, after a thorough and careful review, that the individual poses an imminent threat of violent attack against the United States; (2) capture is not feasible; and (3) the operation would be conducted in a manner consistent with applicable law of war principles." In a Presidential Policy Guidance entitled "U.S. Policy Standards and Procedures for the Use of Force in Counterterrorism Operations Outside the United States and Areas of Active Hostilities" from May 2013 the United States government stated that lethal force by combat drones "will be used only to prevent or stop attacks against U.S. persons, and even then, only when capture is not feasible and no other reasonable alternatives exist to address the threat effectively." The U.S. government further declared that "lethal force will be used outside areas of active hostilities only when the following preconditions are met:
- First, there must be a legal basis for using lethal force.
- Second, the United States will use lethal force only against a target that poses a continuing, imminent threat to U.S. persons.
- Third, the following criteria must be met before lethal action may be taken:
- Near certainty that the terrorist target is present;
- Near certainty that non-combatants will not be injured or killed;
- An assessment that capture is not feasible at the time of the operation;
- An assessment that the relevant governmental authorities in the country where action is contemplated cannot or will not effectively address the threat to U.S. persons; and
- An assessment that no other reasonable alternatives exist to effectively address the threat to U.S. persons.
U.S. President Barack Obama touched on the subject of combat drones in a speech on Counterterrorism delivered on 23 May 2013 at the National Defense University. "It is a hard fact that US strikes have resulted in civilian casualties," he said, adding, "these deaths will haunt us. But as commander-in-chief I must weigh these heartbreaking tragedies against the alternative. To do nothing in the face of terrorist networks would invite far more civilian casualties." Obama said new guidance allowed targeting only those terrorists posing “a continuing and imminent threat to the American people,” which administration officials said meant only individuals planning attacks on the U.S. homeland or against U.S. persons abroad. Obama defended the use of drones as just because America "is at war with al Qaeda, the Taliban and their associated forces." To stop terrorists from gaining a foothold, drones will be deployed according to Obama, but only when there is an imminent threat; no hope of capturing the targeted terrorist; "near certainty" that civilians won't be harmed; and "there are no other governments capable of effectively addressing the threat." Never will a strike be punitive.
A report by Ben Emmerson QC, the UN's special rapporteur on human rights and counter-terrorism, who identified 33 drone strikes around the world that have resulted in civilian casualties and may have violated international humanitarian law urged the United States "to further clarify its position on the legal and factual issues … to declassify, to the maximum extent possible, information relevant to its lethal extraterritorial counter-terrorism operations; and to release its own data on the level of civilian casualties inflicted through the use of remotely piloted aircraft, together with information on the evaluation methodology used." Human Rights Watch said that in Yemen more civilians were killed than admitted by the Obama administration, while Amnesty International said the same of drone strikes in Pakistan. Caitlin Hayden, a White House spokeswoman, declined to comment on the reports, but said in an e-mail statement: "As the President emphasized, the use of lethal force, including from remotely piloted aircraft, commands the highest level of attention and care."
While the U.S. government is considering whether to kill an American abroad suspected of planning terrorist attacks and how to do so legally under new stricter targeting policy issued in 2013, The Intercept reported that the U.S. government is using primarily NSA surveillance to target people for drone strikes overseas. In its report The Intercept the author details the flawed methods which are used to locate targets for lethal drone strikes, resulting in the deaths of innocent people. According to the Washington Post NSA analysts and collectors i.e. NSA personnel who control electronic surveillance equipment use the NSA's sophisticated surveillance capabilities to track individual targets geographically and in real time, while drones and tactical units aimed their weaponry against those targets to take them out.
NBC News released in February 2014 an undated Department of Justice White paper entitled "Lawfulness of a Lethal Operation Directed Against a U.S. Citizen who is a Senior Operational Leader of Al Qa’ida or An Associated Force" in which the Obama Administration concludes that the U.S. government can order the killing of American citizens if they are believed to be “senior operational leaders” of al-Qaida or “an associated force” - even if there is no intelligence indicating they are engaged in an active plot to attack the U.S. However any such targeted killing operation by the United States would have to comply with the four fundamental law-of-war principles governing the use of force which are necessity, distinction, proportionality and humanity i.e. the avoidance of unnessary suffering. (Page 8 of ).The memo also discusses why targeted killings would not be a war crime or violate a U.S. executive order banning assassinations:
“A lawful killing in self-defense is not an assassination. In the Department’s view, a lethal operation conducted against a U.S. citizen whose conduct poses an imminent threat of violent attack against the United States would be a legitimate act of national self-defense that would not violate the assassination ban. Similarly, the use of lethal force, consistent with the laws of war, against an individual who is a legitimate military target would be lawful and would not violate the assassination ban.”
Nearly a year after U.S. President Obama's counterterrorism speech on 23 May 2013 at the National Defense University much of his agenda he outlined remained unfinished or not even begun. This included increased public information on and congressional oversight of lethal attacks with drones, and efforts to move the CIA out of drone programm entirely into the hands of the U.S. military.
On April 21, 2014 the 2nd U.S. Circuit Court of Appeal overtuned the above-mentioned December 2012 ruling by U.S. District Judge Colleen McMahon and ruled that the Obama administration must release documents justifying its drone-killings of Americans and foreigners. The 2nd U.S. Circuit Court of Appeal released on June 23, 2014 a Juli 2010 memo by then U.S. Justice Department’s Office of Legal Counsel David Barron which outlined the rationale for killing the American Citizen Anwar al-Aulaqi.
Referring to killings by drug cartels in Washington, D.C., mayor Marion Barry infamously stated, "Washington should not be called the murder capital of the world. We are the targeted-killing capital of the world." Barry went on to explain that "targeted killings" by D.C.'s cartels were comparable to those during the days of "Al Capone and Eliot Ness" at the time of Prohibition in the United States. Similarly, drug-related "mob hits" in Moscow were euphemistically described as "targeted killings" by the Cox News Service and Atlanta Journal-Constitution in the 1990s.
Legal justifications for targeted killing
The U.S. Army's Law of Land Warfare (Field Manual 27-10) states:
31. Assassination and Outlawry
This article is construed as prohibiting assassination, proscription, or outlawry of an enemy, or putting a price upon an enemy's head, as well as offering a reward for an enemy "dead or alive". It does not, however, preclude attacks on individual soldiers or officers of the enemy whether in the zone of hostilities, occupied territory, or elsewhere.
Daniel Reisner, who headed the International Legal Division of the Israeli Military Advocate General's Office from 1994 to 2005, has stated that although targeted killing is illegal under previous understanding of international law, "If you do something for long enough, the world will accept it. The whole of international law is now based on the notion that an act that is forbidden today becomes permissible if executed by enough countries." Reisner continues, "International law progresses through violations. We invented the targeted assassination thesis and we had to push it. At first there were protrusions that made it hard to insert easily into the legal moulds. Eight years later it is in the center of the bounds of legitimacy." This view is disputed by George Bisharat of the University of California's Hastings College of the Law, who contends that targeted assassination is not widely regarded as legal.
Georgetown Law Professor and former U.S. Marine, Gary Solis, has argued that under certain conditions, "Assassinations and targeted killings are very different acts." For Solis, these conditions require that there is an ongoing military conflict, the targeted individual (civilian or military) has taken up arms, that there is no reasonable possibility of arrest, and that the decision to kill is made by senior political leaders.
Abraham Sofaer, a former legal advisor to the U.S. State Department and fellow at the conservative Hoover Institution think tank, has written that targeted killing is "sometimes necessary, because leaders are obliged to defend their citizens." After the killing of Hamas founder and quadriplegic Ahmed Yassin by Israeli helicopter gunships, Sofaer argued that targeted killing is not prohibited by American Executive Order 11905 banning assassination: "killings in self-defense are no more 'assassinations' in international affairs than they are murders when undertaken by our police forces against domestic killers."
Sofaer had previously argued during the First Gulf War that targeted killing was ethical but impractical: "Targeted killing will also invite revenge against the leaders who order it as well as their citizens and property. Given the legal, political and moral constraints that limit such activities in democratic regimes, the United States has a substantial interest in discouraging acceptance of the killing of political leaders as a routine measure, even in self-defense."
Author and former U.S. Army Captain Matthew J. Morgan has argued that "there is a major difference between assassination and targeted killing.... targeted killing [is] not synonymous with assassination. Assassination ... constitutes an illegal killing." Amos Guiora, formerly an Israeli Defense Forces Lt. Colonol and commander of the IDF school of military law, now Professor of law at the University of Utah, has written that "targeted killing is ... not an assassination". Steve David, Johns Hopkins Associate Dean & Professor of International Relations, writes: "there are strong reasons to believe that the Israeli policy of targeted killing is not the same as assassination". Syracuse Law Professor William Banks and GW Law Professor Peter Raven-Hansen write: "Targeted killing of terrorists is ... not unlawful and would not constitute assassination". Rory Miller writes: "Targeted killing ... is not 'assassination'", and Associate Professor Eric Patterson and Teresa Casale write: "Perhaps most important is the legal distinction between targeted killing and assassination".
American defense department analyst and professor Thomas Hunter has defined targeted killing as the "premeditated, preemptive, and intentional killing of an individual or individuals known or believed to represent a present or future threat to the safety and security of a state through the affiliation with terrorist groups or individuals. Hunter writes that the target is a person who is allegedly taking part in an armed conflict or terrorism, whether by bearing arms or otherwise, who has allegedly lost the immunity from being targeted that he would otherwise have under the Third Geneva Convention. Hunter distinguishes between "targeted killing" and "targeted violence" as used by specialists who study violence.
In response to the terrorist attacks on 9/11, the Authorization for Use of Military Force (AUMF) stated on 14 September 2001, "That the President is authorized to use all necessary and appropriate force against those nations, organizations or persons he determines planned, authorized, harbored, committed, or aided in the planning or commission of the attacks against the United States that occurred on 11 September 2001, and to deter and pre-empt any future acts of terrorism or aggression against the United States". This granted permission to President Bush to do whatever he thought was necessary to pursue al-Qaeda. This authority was extended to President Obama when he took office in 2007 and thus is still in effect today. There are no restrictions regarding the physical location of where this law is applied. It only states that the President has the "authority to use all necessary and appropriate force" this could be interpreted to mean that the President can attack al-Qaeda anywhere in the world.
During the 1998 bombing of Iraq, The Scotsman reported that "US law prohibits the targeted killing of foreign leaders... Administration officials have been careful to say they will not expressly aim to kill Saddam."
Frank Sauer and Niklas Schoernig have described targeted killing as a violation of international law and a contravention of domestic laws, and maintain that the term itself is merely a legitimized euphemism for assassination.
The American Civil Liberties Union states in its website, "A program of targeted killing far from any battlefield, without charge or trial, violates the constitutional guarantee of due process. It also violates international law, under which lethal force may be used outside armed conflict zones only as a last resort to prevent imminent threats, when non-lethal means are not available. Targeting people who are suspected of terrorism for execution, far from any war zone, turns the whole world into a battlefield."  Yael Stein, the research director of B’Tselem, The Israeli Information Center for Human Rights in the Occupied Territories, also states in her article "By Any Name Illegal and Immoral: Response to 'Israel's Policy of Targeted Killing'":
The argument that this policy affords the public a sense of revenge and retribution could serve to justify acts both illegal and immoral. Clearly, lawbreakers ought to be punished. Yet, no matter how horrific their deeds, as the targeting of Israeli civilians indeed is, they should be punished according to the law. David’s arguments could, in principle, justify the abolition of formal legal systems altogether.
In 2001, Ibrahim Nafie criticized the U.S. for agreeing with "the Israeli spin that calls ... its official policy of assassinating Palestinian leaders 'targeted killing.'"
In order for drone strikes to be effective, the United States must obtain consent from the host country they are operating in. The growing chorus of objections from host countries, most notably emanating from Pakistan, seriously inhibits drones’ effectiveness. "Host states have grown frustrated with U.S. drone policy, while opposition by non-host partners could impose additional restrictions on the use of drones. Reforming U.S. drone strike policies can do much to allay concerns internationally by ensuring that targeted killings are defensible under international legal regimes that the United States itself helped establish and by allowing U.S. officials to openly address concerns and counter misinformation." Micah Zenko at the Council on Foreign Relations believes the United States should "end so-called signature strikes, which target unidentified militants based on their behavior patterns and personal networks, and limit targeted killings to a small number of specific terrorists with transnational ambitions. He wants more congressional oversight of drone strikes and stricter regulation on armed drone sales. Finally, he recommends the United States work with international partners to establish rules and norms governing the use of drones. Zenko believes the U.S. government has not been transparent regarding how non-battlefield drone strikes are reconciled with broader foreign policy objectives, the scope of legitimate targets, and their legal framework. While drones may be a critical counterterrorism tool that advances U.S. interests, their "lack of transparency threatens to limit U.S. freedom of action and risks proliferation of armed drone technology without the requisite normative framework." Zenko thinks current drone policy might share the same fate of the Bush-era enhanced interrogation techniques and warrantless wiretapping, both of which were unpopular, illegal and ultimately ended.
Harvard Law School Professors Gabriella Blum and Philip Heymann cite six potential hazards of targeted killings: First, the so-called Hydra effect, or the rise of more—and more resolute—leaders to replace those who were recently "decapitated." Second, drones can drive terrorist leaders into hiding, making the monitoring of their movements, and subsequent intelligence gathering, extremely difficult. Third, "the political message flowing from the use of targeted killings may be harmful to the attacking country’s interest, as it emphasizes the disparity in power between the parties and reinforces popular support for the terrorists, who are seen as a David fighting Goliath." Fourth, when conducted in a foreign country, drone strikes run the risk of heightening tensions between the targeting government and the government in whose territory the operation is conducted. Fifth, targeted killings threaten criticism from local domestic constituencies against the government allowing strikes within their country. Finally, there is a danger of over-using targeted killings, both within and outside the war of terrorism.
Daniel Byman, security studies professor at Georgetown University, argues that Washington must clarify its policies behind extrajudicial and extraterritorial killings, lest a nefarious precedent in international law is set. Additionally, Byman argues that Washington must "remain mindful of the built-in limits of low-cost, unmanned interventions, since the very convenience of drone warfare risks dragging the United States into conflicts it could otherwise avoid." Though Byman recognizes the problems inherent in using armed UAVs, he believes that they are very effective. "U.S. drones have killed an estimated 3,000 al Qaeda, Taliban, and other jihadist operatives in Pakistan and Yemen. That number includes over 50 senior leaders of al Qaeda and the Taliban--top figures who are not easily replaced." Drones have also undercut terrorists' ability to effectively communicate with its target audiences, ultimately straining their recruitment pools. In order to avoid attracting drones, al Qaeda operates have avoided gathering in large numbers and mitigated use of electronic devices. Byman argues that al Qaeda leaders "cannot give orders when they are incommunicado, and training on a large scale is nearly impossible when a drone strike could wipe out an entire coupe of new recruits. Drones have turned al Qaeda's command and training structures into a liability, forcing the group to choose between having no leaders and risking dead leaders."
Audrey Kurth Cronin of George Mason University argues that while drones are tactically savvy, they have failed to advance the strategic goals of U.S. counter-terrorism policy. Terrorism itself is a tactic, Cronin notes, but it succeeds on a strategic plane when a shocking event is successfully leveraged for political gain. “To be effective, counter-terrorism must itself respond with a coherent strategy. The problem for Washington today is that its drone program has taken on a life of its own, to the point where tactics are driving strategy rather than the other way around.” Cronin agrees with Daniel Byman of Georgetown University insofar that drones have inflicted real damage upon al Qaeda. However, “Washington now finds itself in a permanent battle with amorphous and geographically dispersed foe, one with an increasingly marginal connection to the original 9/11 plotters. In this endless contest, the United States risks multiplying its enemies and heightening their incentives to attack the country.”
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This list is in chronological order broken down by publication areas
- Anna Goppel (2013): Killing Terrorists. A Moral and Legal Analysis. De Gruyter, Berlin.
- Raven-Hansen, Peter (March 2002). "Targeted Killing and Assassination: The U.S. Legal Framework". University of Richmond Law Review 37: 667.[dead link]
- Guiora, Amos (2004). "Targeted Killing as active self-defense". Case Western Reserve Journal of International Law 36: 319.[verification needed]
- Statman, Daniel (2004). "Targeted Killing". Theoretical Inquiries in Law 5: 1. doi:10.2202/1565-3404.1090.[dead link]
- Byman, Daniel (March–April 2006). "Do targeted killings work?". Foreign Affairs (Council on Foreign Relations).
- Hatfield, Joseph (September 2006). "Do Targeted Assassinations Work? A Multivariate Analysis of Israel's Controversial Tactic during Al-Aqsa Uprising". Studies in Conflict & Terrorism (Taylor & Francis). doi:10.1080/10576100600641972.
- Vlasic, Mark V. (2012). "Assassination & Targeted Killing—A Historical and Post-Bin Laden Legal Analysis". Georgetown Journal of International Law 43 (2): 259–333. ISSN 1550-5200.
- Dear, Keith (2013). "Beheading the Hydra? Does Killing Terrorist or Insurgent Leaders Work?". Defence Studies Journal 13 (3): 293–337. doi:10.1080/14702436.2013.845383.
- Schlager, Scott A. & Govern, Kevin H. (2013). "'Guns for Hire, Death on Demand': The Permissibility of U.S. Outsourcing of Drone Attacks to Civilian Surrogates of the Armed Forces and Challenges to Traditional Just War Theory". Florida Journal of International Law XXV (2): 147–206.
- Sofaer, Abraham (26 March 2004). "Responses to Terrorism/Targeted killing is a necessary option". The San Francisco Chronicle.
- Kaplan, Eben (25 January 2006). "Q&A: Targeted Killings". The New York Times.
- Blumenfield, Laura (27 August 2006). "In Israel, leaders struggle with targeted killings; Moral, legal quandaries mark decision to use select weapon against terror". The Washington Post.[dead link]
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- Government and UN reports
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- McClure, Kevin (3 June 2010). "UN official says 'targeted killings' fall into 'accountability vacuum'". Blog by Government Documents Librarian for the Downtown Campus Library at the Chicago-Kent College of Law.[dead link]
- Raja, Kanaga (May 2010). "UN expert criticises targeted killings, US drone attacks". Third World Resurgence (237): 32–35.