Of course, the fact that Libya's neighbors are calling for a no-fly zone doesn't, by itself, make it a good idea. After all, they're not proposing to do anything but vote on it; the actual work would most likely have to be done by the United States and NATO, which in practice means the United States, which has the air assets in the region. And Russia or China could still block Security Council authorization for further action. But in this case, the legitimacy of Arab bodies counts for much more than the council's authorization. Qaddafi will, of course, try to portray himself as the victim of a Western crusade. That would be a lot harder if both Libya's rebels and Arab leaders publicly call for the action, and stand by it (which is, of course, far from a certainty). Arab endorsement removes the single greatest political obstacle to action.

