Bombing underway in Lybia

Correct me if I am wrong, But what in the heck are we doing bombing Lybia? I fully understand that WHAT he is doing is wrong, BUT they have been killing each other since the beginning of time. What interest do we have in doing this? Is it going to bring back JOBS, is it going to FIX out economy? I dont think so-

Its the OIL and that is ALL-