section 3039 of this titleNo element of the intelligence community may collect or maintain information concerning a United States person (as defined in ) solely for the purpose of monitoring an activity protected by the first amendment to the Constitution of the United States.
July 26, 1947, ch. 343 Pub. L. 117–103, div. X, title III, § 303136 Stat. 965 (, title I, § 105C, as added , , .)