After ISIS beheading video, David Cameron cancels vacation, Obama heads back to vacation

Over there: “U.K. Prime Minister David Cameron cut short his summer vacation to return to London and chair urgent meetings on the threat posed by ISIS in Iraq and Syria, calling the video ‘shocking and depraved.’”

Over here:

President Obama went back to his vacation on Martha’s Vineyard Tuesday evening following less than 48 hours in Washington, leaving people puzzled over why he came back in the first place.