This is what I find so disturbing - Clarke is clearly unstable and suffers from wild delusions of grandeur. Not the kind of person I want to have the highest security clearance.
Clarke instantly discredited himself with his petty and personal attacks on Bush and Rice. He even went so far as to tell The Guardian that Bush "doesn't like to read" and more than hinted that Bush and Condi are dumb.
Billy Kristol summed it up beautifully on Hume's show - this Clarke affair is utterly disgraceful and ensures that the next new administration won't make the mistake of holding over NSC officials - which will result in a total lack of continuity in the national security team.