Dictionary

green door en · NOUN

Meanings

1. (uncountable) The barrier between compartmentalized intelligence information and those without access to it, especially military personnel who may need it.
   • While this cannot be done in all cases, no commander should accept the notion that whole blocks of intelligence are permanently behind a special “green door” until his intelligence officer has carefully examined the regulations. 1976, Michael T. Chase, “All-Source Intelligence”, in Military Review: Professional Journal of the U.S. Army, volume LVI, number 7, page 45:
   • The NSA is the opposite of the NGA in that the controlled serendipity of its collection-management processes is hidden not only from those beyond the “green door” but from many intelligence community insiders as well. 2005, editors Burton Gerber, Jennifer E. Sims, Transforming U.S. Intelligence, page 151:
   • The so-called “green door”, behind which intelligence is alleged to hoard its secrets has always been, and forever will be, a problem. […] Arranging for dissemination of a specific, known product is relatively easy—it’s the products you don’t know about that the green door hides. 1995, Douglas H. Dearth, R. Thomas Goodden, Strategic Intelligence: Theory and Application, second edition, page 66-67:
   • This information on how the enemy conducted fighter operations came to the Aggressors from many sources behind the “green door” of the US intelligence gathering and interpreting community. 2012, Gaillard R. Peck, Jr, America’s Secret MiG Squadron: The Red Eagles of Project CONSTANT PEG: