Ben Carson: Flying Planes Into Twin Towers 'Didn't Require a Great Deal of Sophistication'

GOP presidential candidate says al Qaeda was not an existential threat in 2001.

"They weren’t nearly as developed as they are now -- at that point,” Carson said in response to an ABC News question. "That was my point. This is so much greater a threat than that was.”

“Yeah, but being responsible for the Sept. 11 attacks, what happened right there really didn’t require a great deal of sophistication because we were not paying attention,” Carson told ABC News. "We were not coordinating our efforts so you didn’t have to be all that great, you had to be able to fly some planes and get a couple of people in here. That’s going to be a lot more difficult to do now. You’re going to have to be a lot more sophisticated than that now.”

In explaining his call for military muscle in Iraq and Syria, Carson said that al Qaeda was not an “existential threat” in 2003.