盖茨的原话：
"So why not have, as part of the mission, regime change, removing Gadhafi from power?" Tapper asked the Secretary of Defense.
"Well, first of all, I think you don't want ever to set a set of goals or a mission -- military mission where you can't be confident of accomplishing your objectives," he said. "And as we've seen in the past, regime change is a very complicated business. It sometimes takes a long time. Sometimes it can happen very fast, but it was never part of the military mission."
