"A central aspect of our Commission's mission is counterterrorism policy: what options senior officials considered before September 11, 2001, and what choices they made," said Commission Chair Thomas H. Kean. "This is clearly one of the most important hearings the Commission will hold. We will bring together senior officials responsible for national security policy from the past two administrations, to explain how they handled the most pressing security threat to our country." Download Media Advisory of hearings agenda and list of witnesses scheduled to testify in PDF format.