Foreign Intelligence Surveillance Act - Scope and Limits

Scope and Limits

For most purposes, including electronic surveillance and physical searches, "foreign powers" means a foreign government, any faction(s) or foreign governments not substantially composed of US persons, and any entity directed or controlled by a foreign government. §§1801(a)(1)-(3) The definition also includes groups engaged in international terrorism and foreign political organizations. §§1801(a)(4) and (5). The sections of FISA authorizing electronic surveillance and physical searches without a court order specifically exclude their application to groups engaged in international terrorism. See §1802(a)(1) (referring specifically to §1801(a)(1), (2) and (3)).

The statute includes limits on how it may be applied to US persons. A "US person" includes citizens, lawfully admitted permanent resident aliens, and corporations incorporated in the US.

The code defines "foreign intelligence information" to mean information necessary to protect the United States against actual or potential grave attack, sabotage or international terrorism.

In sum, a significant purpose of the electronic surveillance must be to obtain intelligence in the U.S. on foreign powers (such as enemy agents or spies) or individuals connected to international terrorist groups. To use FISA, the government must show probable cause that the “target of the surveillance is a foreign power or agent of a foreign power.”