When the steel door to Kennedy Airport's Gate 8 slammed shut, Arturo O'Farrill was on the wrong side. With his wife, sons, and mother in tow one Monday in December, he was bound for Miami, then for Havana via charter flight. And though far from early, the O'Farrills weren't exactly late-the plane began rolling toward the runway 10 minutes ahead of schedule. Inside the cabin of American Airlines Flight 1141, Eric Oberstein [...]