In a preview clip released by CBS Panetta say that ISIS grew because Obama allowed the US to leave Iraq too early and didn't allow the US to get involved with helping the Syrian rebels--against the wishes of his national security force.
Pelley: Back when you watched the stars and stripes being lowered for the last time in Baghdad, were you confident in that moment that pulling out was the right thing to do?
Panetta: No, I wasn't. I really thought that it was important for us to maintain a presence in Iraq.
Panetta: The real key was how can we develop a leadership group among the opposition that would be able to take control. And my view was to have leverage to do that, we would have to provide the weapons and the training in order for them to really be willing to work with us in that effort.
Pelley: But with virtually his entire national security team unanimous on this, that's not the decision the president made.
Panetta: I think the president's concern, and I understand it, was that he had a fear that if we started providing weapons, we wouldn't know where those weapons would wind up... My view was, "You have to begin somewhere