Ron Paul isn't blaming America for 9/11, he is just pointing out that we CANNOT continue to go around the world intervening in the internal affairs of other countries and not expect it to come back full circle to us in some way. If you wish to remain in denial and in the dark about that fact, then you do so at your own risk. Obviously the hijackers chose to do what they did, but we created the atmosphere that bred them!! We supported the Taliban and Bin-Laden against the Soviets in the 80's!! When the Soviets left Afghanistan, we just left too and it was a war-torn country in rubble that the Taliban took over. We also supported Saddam against the Iranians in the 1980's after the Iranians overthrew the puppet government WE installed! These are facts my friend.
Paul won't abolish the CIA, but he's simply saying that the CIA was ineffective in preventing 9/11, so making that agency even larger and spending more money on it is preposterous.