noun
FISA - stands for Foreign Intelligence Surveillance Act, a United States federal law that establishes procedures for the physical and electronic surveillance and collection of foreign intelligence information.
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The Foreign Intelligence Surveillance Act (FISA) allows the government to monitor communications for national security purposes.
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I heard the FBI got a FISA warrant to wiretap that suspect.
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I can't believe they're using FISA to spy on people now.
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The FISA court acts as a safeguard to protect civil liberties while allowing for surveillance in certain cases.