; (2) by redesignating subparagraph (E) as subparagraph (G); and (3) by inserting after subparagraph (D) the following: (E) may not acquire a communication as to which no participant is a person who is targeted pursuant to the authorized acquisition; . 5. Prohibition on acquisition of entirely domestic communications under authorities to target certain persons outside the United States Section 702(b)(1) of the Foreign Intelligence Surveillance Act of 1978, as redesignated by section 2 and amended by section 4, is further amended by inserting after subparagraph (E), as added by section 4, the following: (F) may not acquire communications known to be entirely domestic; and . 6. Limitation on use of information obtained under certain authority of Foreign Intelligence Surveillance Act of 1947 relating to United States persons Section 706(a) of the Foreign Intelligence Surveillance Act of 1978 ( 50 U.S.C. 1881e(a) ) is amended— (1) by striking Information acquired and inserting the following: (1) In general Information acquired ; and (2) by adding at the end the following: (2) Limitation on use in criminal, civil, and administrative proceedings and investigations No communication to or from, or information about, a person acquired under section 702 who is either a United States person or is located in the United States may be introduced as evidence against the person in any criminal, civil, or administrative proceeding or used as part of any criminal, civil, or administrative investigation, except— (A) with the prior approval of the Attorney General; and (B) in a proceeding or investigation in which the information is directly related to and necessary to address a specific threat of— (i) terrorism (as defined in clauses (i) through (iii) of section 2332(g)(5)(B) of title 18, United States Code); (ii) espionage (as used in chapter 37 of title 18, United States Code); (iii) proliferation or use of a weapon of mass destruction (as defined in section 2332a(c) of title 18, United States Code)