To this it might be added that the last time we imposed a no-fly zone on a weakened Arab tyrant who we hoped would soon be toppled by his own people, the year was 1992 and the tyrant in question was Saddam Hussein — and we have been at war in Iraq, in one sense or another, ever since.
Frankly, even Libyan rebels don't want us there. Let's not do anything rash. The costs and risks of a no-fly-zone are far higher than those of sitting back and doing nothing. It's hard watching the remnants of the Libyan government slaughter civilians. But it's not a situation in which the US needs to act, as hard as that is to say.