I just finished watching Richard Clarke's testimony before the 9-1-1 commission. Thank you C-Span! I was listening/watching at least a part of most of the testimonies as they took place yesterday and today. However, Clarke testified for the longest period (about 130 minutes) and was unaided. I will urge you to watch the entire testimony yourself rather than to read and see just the bits and pieces of it in the newspapers or TV. I hope that you will watch it and form your own opinion.
I will talk about only two things here. First one is the observation made by several people including Jason Blake of TMP, David Kay and Richard Clarke. (That's a diverse enough group of people). That observation is the lack of ground intelligence and/or spies. The defense budget continues to spend a lot on developing new and expensive gadgets, but does not provide enough attention to gathering actual intelligence from insiders or agents.
The second is that Condoleezza Rice refused to testify before the commission publicly, even as she continues to show up on all TV networks and rile against Clarke. National Security Advisors have appeared before in a public testimony (Sandy Berger during Clinton's term). The 9-1-1 investigation should be more important than most other investigations. Rice's refusal to testify under oath just increases my suspicion that she is lying.