; relating to United States intelligence activities), or successor order, in an effort to find communications or information the compelled production of which would require a probable cause warrant if sought for law enforcement purposes in the United States of or about 1 or more United States persons or persons reasonably believed to be located in the United States at the time of the query or the time of the communication or creation of the information. (b) Concurrent authorization, consent, and exception for emergency situations (1) In general Subsection (a) shall not apply to a query relating to United States person or persons reasonably believed to be located in the United States at the time of the query or the time of the communication or creation of the information if— (A) such persons or person are the subject of an order or emergency authorization authorizing electronic surveillance or physical search under section 105 or 304 of the Foreign Intelligence Surveillance Act of 1978 ( 50 U.S.C. 1805 , 1824 ), or a warrant issued pursuant to the Federal Rules of Criminal Procedure by a court of competent jurisdiction covering the period of the query; (B) (i) the officer or employee carrying out the query has a reasonable belief that— (I) an emergency exists involving an imminent threat of death or serious bodily harm; and (II) in order to prevent or mitigate this threat, the query must be conducted before authorization pursuant to subparagraph (A) can, with due diligence, be obtained; and (ii) a description of the query is provided to the congressional intelligence committees (as defined in section 3 of the National Security Act of 1947 ( 50 U.S.C. 3003 )) in a timely manner; (C) such persons or, if such person is incapable of providing consent, a third party legally authorized to consent on behalf of the person, has provided consent to the query on a case-by-case basis; or (D) (i) the query uses a known cybersecurity threat signature as a query term