Transcript of the twelfth public hearing held by the National Commission on Terrorist Attacks upon the United States held June 16, 2004 at the NTSB Conference Center in Washington, D.C. The two-day hearing focused on two distinct topics: the 9-11 Plot and the federal government's immediate response to the attacks on September 11, 2001.On June 16 at the National Transportation Safety Board Conference Center, the Commission heard from several of the federal government's top law enforcement and intelligence experts on al Qaeda and the 9-11 plot. The hearing resumed on June 17, with the top military and civilian aviation officials testifying about their agencies' responses to the 9-11 attacks. In addition to witness testimony, three staff statements were presented during the course of the proceedings.