"There's a broader lesson to be learned here: Gov. Romney seems to have a tendency to shoot first and aim later," Obama said in an interview scheduled before the North African violence. "And as president, one of the things I've learned is you can't do that. It's important for you to make sure that the statements that you make are backed up by the facts and that you've thought through the ramifications before you make them."

http://blog.sfgate.com/nov05election/2012/09/12/analysis-romneys-attack-on-obama-over-libya-assassination-could-backfire/