Babble Juice: any substance used as a truth serum
Backstopping: an agent who is very deep undercover, usually with a secondary passport or birth certificate.
BC: Body count
BDA: bomb damage assessment
BIGOT list: a list of intelligence resources who are highly sensitive
Biographic Leverage: intel received from blackmail
Black: referring to any clandestine operation
Black bag operation: bribery for intelligence missions
Blind date: meeting a contact or source at a location of their choosing, risking the chance of a set-up.
Blind memoranda: orders, memos or documents without letterhead, meant to be destroyed
Blown: agents whose identity has been revealed or exposed (also "Burn")
Body count: number of enemy deaths during an operation
Bought the farm: killed
Brief: planning meeting
Briefback: more detailed planning meeting
Brush Pass: a planned confrontation where two agents pass information off to one another after coming into contact.
Bug: Hidden cameras and listening devices
Burned: When an operative is compromised or identified