Is the CIA's Refusal to Cooperate with Congressional Inquiries a Threat to Effective Oversight of the Operations of the Federal Government?: Joint Hearing Before the Subcommittee on Government Efficiency, Financial Management and Intergovernmental Relations and the Subcommittee on National Security, Veterans Affairs, and International Relations of the Committee on Government Reform, House of Representatives, One Hundred Seventh Congress, First Session, July 18, 2001