"UNITED STATES." . . . . "MILITARY POLICY." . . "SPACE WEAPONS." . . "LEGISLATIVE HEARINGS." . . . . . . . . . . . . . . . . "Strategic Defense Initiative : what are the costs, what are the threats? : hearing before the Legislation and National Security Subcommittee of the Committee on Government Operations, House of Representatives, One Hundred Second Congress, first session, May 16 and October 1, 1991"@en . . . . "Strategic Defense Initiative what are the costs, what are the threats? : hearing before the Legislation and National Security Subcommittee of the Committee on Government Operations, House of Representatives, One Hundred Second Congress, first session, May 16 and October 1, 1991"@en . . . . . . "NATIONAL SECURITY." . .