JOE - deep cover agent
JTF2 - JTF 2 - Joint Task Force 2, Canada's special forces, CT unit.
KATSA - Case officer in Mossad
LEGAT - Legal attache, FBI agent working at an embassy.
LEGEND - life story created for a covert agent.
LETTERBOX - a go-between
LLB - Live Letter Box - a forwarding address to an intelligence agency
MI5 - British Security Service (internal)
MI6 - British Secret Intelligence Service (external)
MICROEXPRESSION is a tiny facial expression that lasts less than a quarter of a second. They often occur involuntarily, and can reveal emotions people are trying to hide, or may not even be aware of themselves.)
MILITARY SLANG - examples of military slang from around the world
MLEs - Military liaison elements - Pentagon's intelligence operatives attached to embassies, often comprised of special forces, operating illegaly on foreign territory, including allied.
MOLE - an agent who penetrated an organization or a group
MOSSAD - Israel's spy agency
MUSIC BOX - radio transmitter
NAKED - spy that does not have a cover
NIGHTCRAWLER / TALENT spotter - person who scouts various establishments (bars, clubs) for potential recruits
NOC - Non-official cover
NO-SUCH-AGENCY - slang for NSA.
NUMBERS Stations - shortwave radio stations of uncertain origin, broadcasting people reading streams of numbers, words, or letters.
OGA - Other Government Agency - slang for the CIA, used mainly within the military; also referes to intelligence operations conducted outside of oficial DOD channels.
OIG - Office of Inspector General, CIA.
OMON - Otdel Militsii Osobovo Naznachenyia - Russian SWAT team
ONE TIME PAD - unbreakable randomly generated code, use only once and discard, hence the name
OP - observation post
OPEN SOURCE Intelligence - Information gathered from publicaly available sources such as: Open Sources Center (select "Intelligence" section), Bloomberg, CIA World Fact Book, credit rating agencies, Dow Jones, Internet search engines such as Google, LexisNexis, newspapers of record, such as the New York Times, private investigators, public libraries...
OPO - Offensive Penetration Operation - penetration / infiltration into an enemy / targetted organization / group.
OPPENHEIM MEMORIAL PARK - mythical place where spies supposedly "retire"
OSAMA - terrorist to some, hero to others, possibly a code name for a FALSE FLAG intelligence operation