National Security Takeovers and Technology Preservation: Hearings Before the Subcommittee on Commerce, Consumer Protection, and Competitiveness of the Committee on Energy and Commerce, House of Representatives, One Hundred Second Congress, First Session, Including H.R. 2624, a Bill to Amend Section 721 of the Defense Production Act of 1950 to Clarify and Strengthen Its Provisions Pertaining to National Security Takeovers, February 26 and June 12, 1991, Volume 4