Foreign Intelligence Surveillance Act. Title 50 of the U.S. Code, Chapter 36, Subchapter I, Section 1802, "Electronic surveillance authorization without court order," reads: "[T]he President, through the Attorney General, may authorize electronic surveillance without a court order under this subchapter to acquire foreign intelligence information for periods of up to one year," provided a series of conditions are met.Passed by the Democrats in Congress and signed by Jimmy Carter in 1978. So it's OK.
Haven't heard this discussed yet.