U.S. officials are increasingly concerned about Syria's breakup along sectarian lines, not only because of the potential breakup of the country into hostile territories, but because of heightened chances for the conflict to spill into neighboring countries.

WSJ: Gains by Syrian Army, Hezbollah Renew Pressure on U.S.

Unfortunately, while those parts of the world could have been limited to Greece and Iceland, and maybe California, with deft political action, instead we are now looking at the potential breakup of the euro and (it is weird to be writing this in the 107F heat of Arizona) the loss of its AAA credit rating by the biggest economy on earth.

BBC: USA, Euro: Crunch time