Syrian Slip

John Bolton comments on the Obama Administration's mishandling of Syria. From The Daily Beast:

The Arab League’s decision to suspend Syria is a serious blow to President Bashar al-Assad’s highly unpopular regime, and has led many to believe that its end is nigh. We can all certainly hope for Assad’s fall, but the real import of the Arab League’s tough stance is the escalation it represents in the Sunni Arab world’s growing confrontation against Shia Iran.

What should America do? Why, after decades of Syria supporting international terrorists, pursuing weapons of mass destruction, and brutalizing its citizens (using chemical weapons under Assad’s father), do we not pursue regime change?