San Francisco

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Sen. Rand Paul, Kentucky Republican, is one of the leaders of "Reboot 2014" in San Francisco this weekend, a conference aimed at younger "conservatarians," who tend to be fiscally conservative, but more socially liberal. (Associated Press)

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This May 15, 2013, file photo shows Google Glasses displayed in San Francisco. (AP Photo/Jeff Chiu, File)

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A man dressed in drag marches with a group of employees and family members with Kaiser Permanente during the 44th annual San Francisco Gay Pride parade Sunday, June 29, 2014, in San Francisco. The lesbian, gay, bisexual, and transgender celebration and parade is one of the largest LGBT gatherings in the nation. (AP Photo/Eric Risberg)

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San Francisco Giants pitcher Tim Lincecum, center, is embraced by teammates, from left, Pablo Sandoval, catcher Hector Sanchez, and Buster Posey after throwing a no-hitter against the San Diego Padres a baseball game Wednesday, June 25, 2014, in San Francisco. Lincecum threw his second career no-hitter as San Francisco won 4-0. (AP Photo/Eric Risberg)

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San Francisco Giants starting pitcher Tim Lincecum throws against the San Diego Padres in the first inning of their baseball game Wednesday, June 25, 2014, in San Francisco. (AP Photo/Eric Risberg)

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United States' Chris Wondolowski (18) is defended by Azerbaijan's Rasim Ramaldanov during the first half of an international friendly soccer match on Tuesday, May 27, 2014, in San Francisco. (AP Photo/Marcio Jose Sanchez)

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Washington Nationals' Jason Werth hits a home run against the San Francisco Giants during the fifth inning of a baseball game, Wednesday, June 11, 2014, in San Francisco. (AP Photo/George Nikitin)

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Washington Nationals' Doug Fister works against the San Francisco Giants in the first inning of a baseball game Tuesday, June 10, 2014, in San Francisco. (AP Photo/Ben Margot)