I'm tired of the blame Bush game.
Afghanistan - They harbored bin Ladin. If they had turned him over, the Taliban would still be running all of their show unmolested. They made their choice.
Iraq - If Saddam had complied with the UN, he'd still be alive and in power. He bet his life on the notion the US would not invade. He lost.
Everyone in the world figured that once Saddam was gone, the Iraqi people would rejoice, form a true democracy, and the world would be better. People over estimated the Muslims once again. The only stability seen in the Arab world has been through the brutal rule of dictators and/or the military. They are unable to function any other way. They are either at your throat or at your feet. Brutal domination or submission, that is their culture.
