sleeper agent

sleeper

sleeper cell

sleeper

sleeper cell

agent / agent network / agents

CW agent (chemical warfare agent)

obscurant agent (vision-restricting agent)

damage agent / damaging agent

agent vapor

anti-plant agent

automatic chemical agent alarm

biological agent

blister agent/ gas

blood agent

chemical agent detector

chemical agent detector kit

chemical agent detector paper

chemical agent dissemination

choking agent / gas

corrosive agent

deep-cover agent

defoliating agent

depolymerizing agent

germ warfare agent

harassing agent

ignition agent

incapacitating agent

incendiary agent

intermediate agent

irritant (chemical agent/gas)

liquid droplet agent

nerve agent / gas