A United passenger whose first-class seat on a recent flight from Houston to D.C. was given to Rep. Sheila Jackson Lee is firing back at the Democratic congresswoman's accusations of racism – while challenging the airline's account of the incident. Jean-Marie Simon, an attorney and private school teacher, became the latest face of airline passenger woes when she detailed on Facebook and later to the news media how she lost her seat to the Texas lawmaker. But despite a statement from United seeking to explain the switch-out, she's not giving up the fight. And the congresswoman's response – essentially claiming...