When is it appropriate for law enforcement to engage in wiretapping without first obtaining a search warrant?
it is never legal to engage in wiretapping
when the wiretap is connected to a telephone used by a previously convicted foreign intelligence officer
O when the wiretap is part of an investigation into possible terrorism or espionage in which probable cause has been determined
when the wiretap is part of a blanket tap of all of the telephones in a specific neighborhood or community
