account
act
business
cabinet
classified
cloak and dagger
confidential
conspiracy
conspirator
cover up
covert
espionage
figure
files
filing
foia
folders
freedom of
hands
hidden
hide
hiding
information
investigative
journalism
listing
looking
mysterious
mystery
over
papers
paperwork
receipts
records
reveal
saved
secret
secretive
shadowy
sheets
spy
spying
storage
stored
storing
system
top
undisclosed
veiled
work
working