protracted civil war or it could descend in to chaos. >> the u.s. sharpening its message as the crisis in libya continues to develop sending in some of our own marines, defense secretary robert gates announcing a short time ago that two warships will be arriving in the mediterranean for humanitarian help along with 400 u.s. marines. meanwhile lots to talk about today in the creation of a no fly zone over libya should we, shouldn't we, can we, can't we, in an evident to try to keep gadhafi from bombing his own people. the pentagon warns it's easy to say, harder to do. >> you would have to remove the air defense capability in order to establish the no fly zone. so in illusions here, it would be a military situation, it wouldn't simply be telling people not to fly airplanes. >> lawmakers in the u.s. have even suggested that we start