From Wikipedia, the free encyclopedia
- Sensitive Compartmented Information Facility (SCIF)
- Cone of Silence, a perpetually malfunctioning security tent used in the 1960s TV series Get Smart
- Schmidt, Michael S.; Schmitt, Eric (November 9, 2013), "Obama’s Portable Zone of Secrecy (Some Assembly Required)", New York Times,
Even when Mr. Obama travels to allied nations, aides quickly set up the security tent — which has opaque sides and noise-making devices inside — in a room near his hotel suite. When the president needs to read a classified document or have a sensitive conversation, he ducks into the tent to shield himself from secret video cameras and listening devices.