All three presidents have some responsibility for 9/11. The most important issue now is HOW are we dealing with this danger we all know exists?
Soon after 9/11 we attacked and started to deal with the elements in Afghanistan that planned and supported 9/11 but never committed the resources needed to complete the job. Now the very same elements that conducted 9/11 are reestablishing their power base in that country!
We attacked Iraq which had NOTHING to do with 9/11 and posed no real danger to the United States which accomplished two negative results. First, we have used the majority of our military resources in the wrong place. Second, our invasion has acted as a rallying cry around which those that hated us enough to attack us on 9/11 have GROWN in strength and hatred toward the United States which make us LESS SAFE?
This is the FAILED policy of President George W. Bush not Bill Clinton or George H.W. Bush!