release any information relevant to the loss, fate, or status of Missing Armed Forces Personnel that is held under seal of the court. (2) Grand jury information (A) In general The Review Board may request the Attorney General to petition any court of the United States to release any information relevant to loss, fate, or status of Missing Armed Forces Personnel that is held under the injunction of secrecy of a grand jury. (B) Treatment A request for disclosure of Missing Armed Forces Personnel materials under this Act shall be deemed to constitute a showing of particularized need under rule 6 of the Federal Rules of Criminal Procedure. (b) Sense of Congress It is the sense of Congress that— (1) the Attorney General should assist the Review Board in good faith to unseal any records that the Review Board determines to be relevant and held under seal by a court or under the injunction of secrecy of a grand jury