According to conventional wisdom, Iraq may have been a mistake. But not Afghanistan. We had to get OBL. He had killed 3000 Americans. We had no choice. And the Taliban wouldn't hand him over.
In fact, that's not quite true. The Taliban did offer to hand bin Laden over to a third party according to the Washington Post. They made requests that truthfully just don't sound so strange to me. They wanted evidence of his guilt before handing him over. We could have provided the evidence and brought justice to him. Instead he remains free. And we fight against a government in Afghanistan that did nothing to us.
Of course we're bringing freedom, helping women, bringing aid, etc. Wait. Scratch that. That was how the Soviets thought about their invasion of Afghanistan. Why are we there?