Editing Conspiracy BBS Archive/nsa-egb (section)

===Items Treated As Classified===
 
For purposes of transportation, storage and destruction, there are
certain types of items which must be treated as classified even
though they may not contain classified information.  Such items
include carbon paper, vu-graphs, punched machine processing cards,
punched paper tape, magnetic tape, computer floppy disks, film, and
used typewriter ribbons.  This special treatment is necessary since a
visual examination does not readily reveal whether the items contain
classified information.