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Mark Gregory Koernke (//; born 1957), known as "Mark from Michigan," is a prominent militia activist and shortwave radio broadcaster . As an early proponent of the black helicopters, he was largely responsible for popularizing it in appearances on Tom Valentine's radio show and in speeches which were widely circulated on videocassette. He was host of his own radio show, "The Intelligence Report", on WWCR until the station indefinitely suspended his broadcasts. Shortly before his suspension, Koernke had suggested that authorities were setting up Timothy J. McVeigh for assassination. During this time he was interviewed by Sam Donaldson.
Koernke is also known for his various educational videos on the New World Order. One of his better known pieces of work is called "America in Peril". America in Peril is the first in a trilogy of movies with America in Peril 2, and America in Peril 3 being the following documentaries.
After serving a three-to-seven-year sentence in prison for assaulting police, resisting arrest, and fleeing from police in a car chase, Koernke claimed that he had been set up by John Stadtmiller, co-founder of the Republic radio network syndicating his show.
On March 15, 2007, Koernke completed his sentence and was released from prison. He is not under any parole since he served his entire time sentenced in prison. Koernke initially resumed hosting "The Intelligence Report" on the "Patriot Broadcasting Network" and WTPRN  but now is broadcasting on Liberty Tree Radio  and the Micro Effect. In addition to radio Mark Koernke has many training videos on his YouTube page under the name Libertytreeradio.
- Betzold, Michael (2010-06-24). "Mark Koernke's War: Dexter man inspires Michigan Militias". The Ann Arbor Observer. Retrieved 2014-04-15.
- Mark Koernke
- The Voices of Radical Radio
- "Terror in Oklahoma; Rightist Leader Is Off the Radio". The New York Times. The New York Times Company. 1995-04-29. Retrieved 2007-03-14.
- Stout, David (1995-04-30). "Terror In Oklahoma: Radio; Some Rightist Shows Pulled, and Debate Erupts". The New York Times. The New York Times Company. Retrieved 2007-03-14.
- on YouTube
- Mark Koernke - America in Peril (About The New World Order) Google Video
- "Agents seize radio equipment, weapons from home of former militia leader". The Associated Press State & Local Wire (Associated Press). 2002-11-07.
- "Militia activist sentenced for fleeing police". The Associated Press State & Local Wire (Associated Press). 2001-04-24.
- Website of the Patriot Broadcasting Network
- "WTPRN programs".
- "Liberty Tree Radio".
- "The Micro Effect".
- Mark's page on YouTube
- Shapiro, Joseph P.; Paul Glastris; Mike Tharp; David Bowermaster; Jim Impoco; Warren Cohen; Peter Cary; Douglas Pasternak; Dorian Friedman; Amy Bernstein; Vic Sussman; Timothy M. Ito; Jerelyn Eddings (1995-05-08). "Extremism in America: An epidemic of fear and loathing". U.S. News & World Report (U.S. News & World Report). p. 37. - "The fast-growing fringe claims broader influence with its pamphlets, videotapes, shortwave radio programs and computer bulletin board forums. These spread a vision of federal officials duped and controlled by some faceless threat to democracy be it ZOG (an alleged Zionist occupation government), the United Nations or the Russians. Some militant patriot leaders like "Mark from Michigan," Mark Koernke, whose rancorous radio broadcasts briefly made him a suspect in the Oklahoma blast believe the bomb may have been set off by federal agents in order to create a pretext for shutting down the militias."
- Stern, Kenneth S. (1997). A Force Upon the Plain (Reprint ed.). University of Oklahoma Press. ISBN 0-8061-2926-3.
- "Mark Koernke". Extremism in America. Anti-Defamation League. 2005. Retrieved 2007-02-15.
- Berlet, Chip; Matthew N. Lyons (2000). Right-Wing Populism in America: Too Close for Comfort. New York: Guilford Publications. ISBN 1-57230-562-2.
- Koernke, Mark (1994). Towards the new world order: America's secret police force. TRAX. ASIN B0006QGO4E.
- "Patriot Crimes: 'Mark From Michigan' goes to prison". Intelligence Report. Southern Poverty Law Center. 2001. Retrieved 2007-02-15.
- Radio show archives from WTPRN
- Liberty Tree Radio Home Page
- Radio show archives from a listener named Spike
- Re-broadcast and show archives on Militiaradio.com
- Archives of The Intelligence Report
- Mark Koernke's YouTube page
- Van Biema, David; Michael Mcbride; Mark Thompson (1995-06-26). "Mark Koernke". Time. ISSN 0040-781X. Retrieved 2012-03-22.
- "Tip about militia member Mark Koernke led to Hutaree investigation, court filing says". AnnArbor.com. Retrieved 2012-03-22.