satisfactorily to construct such lines, the President could provide for the construction by such department as he might designate.[300] The government thus was privileged to go into the pipe-line business, constructing and operating defense needed pipe-lines. Among the prerogatives which Congress made available to the Secretary of the Navy for purposes of insuring adequacy of maritime salvage operations during the war, was that of acquiring such vessels and equipment as he might deem necessary therefor.[301] The Secretary also was empowered to transfer, by charter or otherwise, such equipment for operation by private salvage companies. The Defense Production Act of 1950 gave the President powers virtually equal to those granted by Congress to the President in 1941. Again the President was empowered to requisition needed materials for the defense of the United States.[302] And in July 1953 the three armed service secretaries were empowered to acquire, construct, establish, expand, rehabilitate or convert industrial plants, either publicly or privately owned, as might be needed for the defense of the United States. The statutory language followed the familiar prescription that acquisition could be by purchase, donation, lease, condemnation or otherwise as necessary.[303] FACILITATING ACQUISITION BY PRIVATE ENTERPRISES In July 1941 Congress used the power of eminent domain to facilitate the construction of public utilities for defense purposes.[304] Upon finding that the construction of any pipe-line for the transportation and/or distribution of petroleum or petrol products moving in interstate commerce was or might be necessary for national-defense purposes, the President was permitted to acquire such land or interest in land, including rights-of-way or easements, by the exercise of the right of eminent domain, as, in his opinion might be necessary.[305] The President invoked this Act on a number of occasions.[306] The Second War Powers Act earlier mentioned not only authorized the acquisition of real property by the Secretaries of War and Navy or their agents, but permitted them to dispose of such property or interest therein by sale, lease or otherwise.[307] The Small Business Concerns Mobilization Act of June 1942 empowered the Smaller War Plants Corporation, established under the Act,[308] to purchase or lease land, to purchase, lease, build, or expand plants, and to purchase or produce equipment, facilities, machinery, materials, or supplies, as might be needed to enable the Corporation to provide small business concerns with the means and facilities to engage in the production of war materials.[309] The Corporation could also enter into contracts with the United States government and any department, agency, or officer of the government having procurement powers and obligate the Corporation to furnish articles, equipment, supplies, or materials to the government. AVAILABILITY OF FEDERALLY OWNED PROPERTY TO PRIVATE ENTERPRISE