I guess for me the concerns about getting involved in Libya are two-fold.

First, I tend to believe the libertarian viewpoint that our military should only be used for defense of our homeland. There's simply nothing in the US constitution about helping other country's citizens become free of tyrant rulers or, even moreso, aggressively attacking countries because they "might" harm us at some point in the future as we did with Iraq. And other than defending the steady supply of oil I don't think one could, even stretching in the most desperate way, make a credible argument that US safety is any way dependent on what happens in Libya.

Secondly, I'm VERY concerned that our involvement in Libya will become yet another open ended, long running conflict. Our stated goal at this point seems to be to depose Gaddafi. But then what? Will we leave as soon as that's accomplished? I doubt it. Are we going to stay and "keep the peace" while the differing groups within that country set up a democracy? We've already been doing that in Iraq and I question whether we've really made too much progress after all these years. Are we really prepared to stay as long as it takes to do it in yet another country? And if we are then are we going to do so in every middle eastern country where the population has decided to overthrow their government in a yearning to be free? Or will we pick and choose? And if so, how will we choose? What if Saudi Arabia is the next country to undergo revolution? The House of Saud has been a staunch ally for many years. Would we really stand with the people on that one? Or would we decide that somehow Saudi Arabia is "different"?