In addition to any other authority or requirement regarding protection from dissemination of information, and subject to
section 552(b)(3) of title 5, the Secretary of Defense, with respect to special nuclear materials, shall prescribe such regulations, after notice and opportunity for public comment thereon, or issue such orders as may be necessary to prohibit the unauthorized dissemination of unclassified information pertaining to security measures, including security plans, procedures, and equipment for the physical protection of special nuclear material.