obama certainly politicized this tragedy. But it's what presidents (and politicians in general) do every time.
Remember Bush cashing in on 911? Rummy telling his people to attach iraq to pentagon attack "real or otherwise"? Patriot act pushed thru 2 days later? You're with us, or youre with the terrorists?
Scumbaggery from obama, and scumbaggery from every other poitician. That screencap of the big screen with 'applause' on it... that says it all right there.