that makes no sense, why would the US simply bomb refugee camps and so on, that would not serve any US strategic interests.
anyways, the US is trying to get peace in the Middle East ( i don't mean that the US are peace loving people who want the world to get along, but, clearly it would be hard for american trade interests to flourish in a war torn lebanon)
and israel has not been actively fighting in lebanon since last year. lets not forget that lebanon's own airforce is aged,out dated and not serviceable. meanwhile, isreal has some of the most modern weaponry in the region.
anyways, my solution for lebanon is to kick out all the palestinian refugees from the north, and make southern lebanon a sovereign nation, orat least, not part of the lebanese state, in order go regain the christian dominated statehood, and also kicking out hazbollah's support base.