bugging
cloak-and-dagger work
counterespionage
counterintelligence
electronic surveillance
espial
espionage
following
intelligence
intelligence work
military intelligence
observation
secret police
secret service
shadowing
spying
surveillance
tailing
trailing
wiretap
wiretapping
7-eleven
Laundromat
box-body
chophouse
command-post
commo
company-owned
eatery
gas-guzzling
merchants'
pantechnicon
semitrailer
subdivide
tecmo
truckers'
uplink
verbenas
breakout
shakeout
takeout