We collect bulk metadata

section 702 deals with foreign intelligence gathering within the United States

The Foreign Intelligence Surveillance Act of 19781 (FISA) regulates, among other things, the government's acquisition of electronic surveillance within the United States for foreign intelligence purposes. FISA allows a federal officer to seek an order from a judge at a specially designated court "approving electronic surveillance of a foreign power or an agent of a foreign power for the purpose of obtaining foreign intelligence information."2 As long as the requisite foreign nexus can be shown, FISA warrants are preferable to their possible substitutes because they are easier to obtain and allow for more secretive and penetrating investigations.3 Consistent with FISA's foreign focus, the government may use the statute to investigate members of international terrorist groups within the United States.4 However, the activities of purely domestic terrorist groups do not fall under FISA and must therefore be investigated using standard criminal investigative tools.