Except as provided in subparagraphs (C) and (D), the Secretary or the Attorney General, as applicable, and any officer or employee of the Department of the Treasury or the Department of Justice, shall not disclose any information, including information provided by a whistleblower to either such official, which could reasonably be expected to reveal the identity of a whistleblower, except in accordance with the provisions of
section 552a of title 5, unless and until required to be disclosed to a defendant or respondent in connection with a public proceeding instituted by the appropriate such official or any entity described in subparagraph (D).