AC – air conditioner.
GPS – Global Positioning System.
CIA – Central Intelligence Agency.
MIA – missing in action.
AR-15 – the ArmaLite AR-15: a selective fire, air-cooled, gas-operated, magazine-fed rifle manufactured in the United States between 1959 and 1964. Its military version was adopted by the United States Armed Forces as the M16 rifle.
BS – bullshit.
R and R – military slang for "rest and recuperation" (or "rest and relaxation" or "rest and recreation").
VP – Vice President (of the USA).
DNA – deoxyribonucleic acid.
OCD – obsessive–compulsive disorder.
PI – private investigator.
MP – military police.
DoD – Department of Defense (of the USA).
NBA – National Basketball Association.
SOL – shit outta luck.
SUV – sport utility vehicle.
DHS – Department of Homeland Security.
Army 5K – a long-distance road running competition over a distance of five kilometers for servicemen.
CPR – cardiopulmonary resuscitation.
IED – improvised explosive device.
DVT – deep vein thrombosis.
BOLO – Be On (the) Look-Out: a broadcast issued from any American or Canadian law enforcement agency to its personnel, or to other law enforcement agencies. It typically contains information about a wanted suspect who is to be arrested or a person of interest, for whom law enforcement officers are to look. Also known as lookout, APB (All-Points Bulletin) and ATL (Attempt To Locate).
IV – intravenous.
AWOL – absent without official leave.
CYA – cover your ass.
MMA – mixed martial arts.
SEAL – Sea, Air, and Land (teams of the United States Navy).
SWAT – Special Weapons And Tactics (team).
FBI – Federal Bureau of Investigation.
WTF – what the fuck.
DIA – Defense Intelligence Agency.
QT – quiet (the state of being secret or confidential).
FCC – Federal Communications Commission.
RF – radio frequency.
POTUS – President of the United States.
WFO – Washington Field Office (of the Federal Bureau of Investigation).
NSA – National Security Agency.
BWI – IATA (International Air Transport Association) code for Baltimore/Washington International Thurgood Marshall Airport.
MBA – Master of Business Administration.
BFF – best friends forever.
NSC – National Security Council.
DMV – Department of Motor Vehicles.
CEO – Chief Executive Officer.
NFL – The National Football League: a professional American football league.
ICU – intensive care unit.
HRT – Hostage Rescue Team.
RPG – rocket-propelled grenade.