JOE - deep cover agent

JTF2 - JTF 2 - Joint Task Force 2, Canada's special forces, CT unit.

KATSA - Case officer in Mossad

KGB

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"

ORDEN - right-wing, paramilitary terrorist organization that murdered and disappeared the opposition and civillians of El Salvador.

OSAMA - terrorist to some, hero to others, possibly a code name for a FALSE FLAG intelligence operation