The Syrian disaster is like a superstorm. It’s what happens when an extreme weather event, the worst drought in Syria’s modern history, combines with a fast-growing population and a repressive and corrupt regime and unleashes extreme sectarian and religious passions, fueled by money from rival outside powers — Iran and Hezbollah on one side, Saudi Arabia, Turkey and Qatar on the other, each of which have an extreme interest in its Syrian allies’ defeating the other’s allies — all at a time when America, in its post-Iraq/Afghanistan phase, is extremely wary of getting involved.