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Thomas Trujillo (sincitypixels)

President Barack Obama visits Desert Pines High School, Las Vegas Neva ...

Updated: Oct 01, 2012 10:18pm PST

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Thomas Trujillo (sincitypixels)

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Updated: Sep 13, 2012 11:32am PST

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Updated: Apr 22, 2010 11:51pm PST

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Alan Walters

President Obama's addresses the Space summit at Kennedy Space Center

Updated: Apr 17, 2010 6:24pm PST