It's been 2 1/2 years since 9/11 and we still don't know how 9/11 was allowed to occur, which obviously precludes us from being better able to fend off another 9/11. Bush fought against the creation of the Commission, fought against providing timely access to information the Commission sought - forcing the Commission to request a two-month extension, which Bush then fought against. Bush fought against allowing Rice to testify, fought against releasing Clinton's documents to the Commission, and is fighting truth-finding by Bush doing a joint appearance with Cheney in front of the Commission. These are just some of the things the Bush Administration has done to prevent the 9/11 Commission from getting it's work done in a timely and effective manner - and that directly weakens US national security by preventing us from learning from the Commission's results.
Someone needs to call the White House on this...