Mitt Romneyhas recently attacked the U.S. president’s response to protests in North Africa. Barack Obama has said Mitt Romney tends to "shoot first and aim later." Obama told CBS News that Romney’s criticisms that Obama sympathised with protesters outside US embassies were premature and proof of his rival's propensity to lash out. "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."