Hey, children, I bet you all were the ones who always ended recess crying that kickball was "unfair". Get with it!
1) We really can't have thugs like Serbia disrupting Europe. Even if there's a 1% chance that their little scruffle will spread into a broader war, we can't risk having the European market disrupted like that.
2) Both sides (Serbia & Kosovo) are guilty of acting like monsters. Who cares if we bomb either!
3) Military action is good training, and serves to keep our all-volunteer military at a peak level.
4) Serbia's made the US (alright, made Bill Clinton) look like a pathetic pansy for too long. Finally we're showing some cajones!
I'd write more, but I'm getting hungry for a burger...