A United plane lands as an American plane taxis to takeoff at SFO in March. (Photo by Tayfun Coskun ... More )Anadolu )Anadolu via Getty ImagesToplineAs it reports second quarter earnings on Thursday, American Airlines has to fight the perception that it is doomed to be the permanent bronze metal holder among the three global U.S. carriers.American Is Under The Gun From United CEO Scott KirbyExpectations for American have been diminished by punishing commentary from Scott Kirby, CEO of rival United Air Line ...