President Lyndon Johnson talks with civil rights leaders in his White House office on Jan. 18, 1964. The black leaders, from left, are, Roy Wilkins, James Farmer, Dr. Martin Luther King Jr., and Whitney Young. AP hide caption

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President Obama stands on stage with Vice President Biden and their families after accepting the party nomination during the final day of the 2012 Democratic National Convention in Charlotte, N.C. Alex Wong/Getty Images hide caption

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Sen. Dianne Feinstein, D-Calif., speaks with reporters after alleging that the CIA broke federal law by secretly removing sensitive documents from computers used by the Senate Select Committee on Intelligence, the committee tasked with congressional oversight of the CIA. Win McNamee/Getty Images hide caption

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Campaign workers and other political operatives are trying to find ways to use Google Glass on the campaign trail. Frederic J. Brown /AFP/Getty Images hide caption

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At CPAC this year, even Sen. Rand Paul's cardboard cutout was drawing attention. The Kentucky lawmaker was leading in the straw poll among attendees Friday. Jim Lo Scalzo/EPA/Landov hide caption

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