technologies of unknown origin, and non-human intelligence materials under this division 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 the 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