Pakistan's only Christian cabinet member was under threat of death for opposing laws against "insulting" Islam. He was murdered today in Islamabad. In Yemen a radical cleric, once a mentor of Osama bin Laden, has rallied crowds with calls for establishing Islamic rule. But the actual toppling of Egypt's President Hosni Mubarak was accomplished in 18 days by mostly peaceful protesters for whom Islam appeared to be only an afterthought. What does that mean for the power of al Qaeda and other extremists in the Muslim world?