A group of Marines on their way home from Afghanistan got something they didn't expect after spending the better part of five days getting on and off planes as they tried to get from one side of the globe to another. Boarding a jet for San Diego, the Marines learned that American Airlines — which has a policy to upgrade servicemen and women in uniform whenever possible — had six empty seats in first class for the group. That gesture was followed by seven first-class passengers who jumped out of their seats for the other Marines so they could sit together.