Except as provided in paragraph (6), upon receipt by the Secretary of a request which meets the requirements of subparagraph (B) from the head of any Federal agency or the Inspector General thereof, or, in the case of the Department of Justice, the Attorney General, the Deputy Attorney General, the Associate Attorney General, any Assistant Attorney General, the Director of the Federal Bureau of Investigation, the Administrator of the Drug Enforcement Administration, any United States attorney, any special prosecutor appointed under section
593 of title
28, United States Code, or any attorney in charge of a criminal division organized crime strike force established pursuant to section
510 of title
28, United States Code, the Secretary shall disclose return information (other than taxpayer return information) to officers and employees of such agency who are personally and directly engaged in—