Las Vegas

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Former Secretary of State Hillary Rodham Clinton, right, takes questions from John Podesta, counselor to President Barack Obama, at the National Clean Energy Summit Thursday, Sept. 4, 2014, in Las Vegas. (AP Photo/John Locher)

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Andrew Wiggins of the Cleveland Cavaliers prepares to take a free throw against the Milwaukee Bucks in an NBA summer league basketball Friday, July 11, 2014, in Las Vegas. (AP Photo/John Locher)

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Shania Twain had a two-year residency at Caesars Palace in Las Vegas. (Associated Press) ** FILE **

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Miami Heat's James Nunnally (72) and Washington Wizzards' Glen Rice Jr. (14) go after a loose ball during the first half of an NBA summer league basketball game Tuesday, July 15, 2014, in Las Vegas. (AP Photo/Isaac Brekken)

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Sidney Crosby of the Pittsburg Penguins poses with the Ted Lindsay Award, the Hart Trophy and the Art Ross Trophy after winning the awards at the NHL Awards on Tuesday, June 24, 2014 in Las Vegas. (AP Photo/John Locher)

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PARIS HILTON - This file photo released Saturday, Aug. 28, 2010 by the Las Vegas Metropolitan Police Department shows Paris Hilton in a police booking photo in Las Vegas. The district attorney in Las Vegas says Paris Hilton will avoid jail time on drug charges under the terms of a plea deal worked out with prosecutors, Friday, Sept. 17, 2010. (AP Photo/Las Vegas Metropolitan Police Department)

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Tourists watch Independence Day weekend fireworks explode over Caesar's Palace as the Bellagio fountain show plays simultaneously, in Las Vegas. (AP Photo/Julie Jacobson)