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.

Obama’s two days in Washington were mostly quiet, and concluded with the president receiving his daily national security briefing in the morning, and joining Vice President Biden to huddle with members of his economic team in the afternoon.

Administration officials have insisted for weeks that the president just wanted to return to the White House for a series of meetings, but the explanation was met with a healthy dose of skepticism, since Obama rarely interrupts his vacations.

Lead item on Whitehouse.gov right now: HUD Secretary Julian Castro is sworn in.

No statement yet from the president on the not-quite-confirmed-but-not-disputed Foley murder video.