Richard Clarke is an extremely intelligent, insightful, and articulate counter-terrorism expert. I don't attribute 'expert' status to many. So, just because he was a Clinton lackey, and rolled over to become a Bush-basher in order to feed his incredible ego, don't let that color your acceptance of his powers of observation and analysis. He's has frequently been spot-on.
I think there is better than a 60-70% prob that he is right on target in his article, again. I only disagree with two of his points made in the article, one being that the current gov't in Iran will never get 'the bomb'.
sub6
Did you read his book?