Lawful Intelligence and Surveillance of Terrorists in an Emergency by NSA Act or LISTEN Act - States that specified provisions of federal criminal law concerning wire and electronic communications and their interception and the Foreign Intelligence Surveillance Act of 1978 (FISA) shall be the exclusive means by which domestic electronic surveillance may be conducted. Directs the President to ensure that: (1) all electronic surveillance of persons in the United States is conducted within those exclusive means; and (2) the procedures for applying for an order for electronic surveillance under FISA continue to be adequate for the timely and efficient electronic surveillance of appropriate targets.
Requires: (1) the President to report to the congressional intelligence and judiciary committees upon a determination that such procedures are inadequate; and (2) the report to contain findings and recommendations with respect to emergency or routine applications for such orders.
Authorizes appropriations to the National Security Agency (NSA) and the Department of Justice (DOJ) for activities of the Office of Intelligence Policy and Review to ensure the timely and efficient processing of applications to the Foreign Intelligence Surveillance Court.