From earthquakes to terrorist attacks : is the National Capital Region prepared for the next disaster? : joint hearing before the Oversight of Government Management, the Federal Workforce, and the District of Columbia Subcommittee and Ad Hoc Subcommittee on Disaster Recovery and Intergovernmental Affairs of the Committee on Homeland Security and Governmental Affairs, United States Senate, One Hundred Twelfth Congress, first session, December 7, 2011. (U.S. G.P.O.,, 2012)