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Dulles airport hologram is first test for U.S. airport

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Washington Dulles International Airport has a new greeter to meet international visitors. Her name is Paige. And she isn't real. Paige is a life-size, 3-D, surround-sound hologram that welcomes travelers to the airport's international terminal. The first such hologram in a U.S. airport tells travelers how to get through customs, helping people sort out what papers they need and...