Slideshow

Mark Zuckerberg and Marissa Mayer field questions about Prism

Zuckerberg said the US government 'blew it' while Mayer said revealing details about the programs would be 'treason'

  • Facebook CEO Mark Zuckerberg speaks on stage at the TechCrunch Disrupt conference in San Francisco on September 11, 2013.

  • Facebook CEO Mark Zuckerberg speaks on stage at the TechCrunch Disrupt conference in San Francisco on September 11, 2013.

  • Facebook CEO Mark Zuckerberg speaks on stage at the TechCrunch Disrupt conference in San Francisco on September 11, 2013.

  • Yahoo CEO Marissa Mayer speaks on stage at the TechCrunch Disrupt conference in San Francisco on September 11, 2013.

  • Yahoo CEO Marissa Mayer speaks on stage at the TechCrunch Disrupt conference in San Francisco on September 11, 2013.

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