TY - BOOK ED - United States. TI - Protecting America's critical infrastructure: how secure are government computer systems? : hearing before the Subcommittee on Oversight and Investigations of the Committee on Energy and Commerce, House of Representatives, One Hundred Seventh Congress, first session, April 5, 2001 PY - 2001/// CY - Washington PB - U.S. G.P.O., For sale by the U.S. G.P.O., Supt. of Docs. [Congressional Sales Office] KW - Administrative agencies KW - Computer networks KW - Security measures KW - United States KW - Information storage and retrieval systems KW - Computer security N1 - Distributed to some depository libraries in microfiche; Shipping list no.: 2001-0440-M; "Serial no. 107-13."; CRDP Program record; Includes bibliographical references; Microfiche; [Washington, D.C.]; Supt. of Docs., U.S. G.P.O; [2001]; 3 microfiches : negative ER -