Arms
The UN has effectively put an arms embargo on Libya. And here you have the US president openly stating that he is considering arming or aiding the rebels in violation of the UN resolutions and International law. The US and the coalition have already twisted the UN's no-fly zone resolution into a license to act as the rebels' air force.
Strange how the people who twists and disregard international laws to fight illegal wars, claim a moral high ground.
Americans think they have a right to mind other people's business. And by "other people" I mean of course whoever their media brainwashes them into supporting.