The Ghost of Ronald Reagan

The documents assert that mandate baldly. A legal factsheet from the NSA, dated June 2013, states that the FISA, which requires judicial oversight over spying on Americans, “only regulates a subset of the NSA’s signals intelligence activities. NSA conducts the majority of its SIGINT activities solely pursuant to the authority provided by Executive Order 12333.”

Source: The Ghost of Ronald Reagan Authorizes Most NSA Spying