Environmental crimes at the Rocky Flats nuclear weapons facility. Volume I, Executive session: September 10, 11, 17, 18, 23 (11:00 a.m.), 24, 25, 30, 1992; public session: September 23 (2:15 p.m.), October 2, 5, 1992 : hearings before the Subcommittee on Investigations and Oversight of the Committee on Science, Space, and Technology, U.S. House of Representatives, One Hundred Second Congress, second session