Arianna Huffington, president and editor-in-chief of The Huffington Post Media Group, speaks at the 2014 World Economic Forum. Reporters and editors in 15 countries will contribute to "What Works," her site's new initiative focused on covering positive news. Ruben Sprich/Reuters/Landov hide caption

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Congolese editor Solange Lusiku Nsimire says journalism is a powerful way of building and preserving her troubled country's "collective memory." Sylvain Muyali/Courtesy of IWMF hide caption

itoggle caption Sylvain Muyali/Courtesy of IWMF

Ben Bradlee, then-executive editor of The Washington Post, looks at the front page of the newspaper, headlined "Nixon Resigns," in the composing room on Aug. 8, 1974. David R. Legge/Washington Post/Getty Images hide caption

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Drone Journalism Lab researcher Ben Kreimer is limited to testing drones indoors. Courtesy of Drone Journalism Lab hide caption

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U.S. journalist Simon Ostrovsky in Moscow in 2004. He was reportedly released on Thursday after being held briefly by pro-Russian separatists in eastern Ukraine. Alexander Nemenov/AFP/Getty Images hide caption

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In a photo taken earlier this month, U.S. reporter Simon Ostrovsky stands with a pro-Russian gunman at a seized police station in the eastern Ukrainian town of Slovyansk. Ostrovsky has reportedly been seized by the pro-Russian insurgents. Efrem Lukatsky/AP hide caption

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Journalists Laura Poitras and Glenn Greenwald helped The Guardian win a Pulitzer Prize for public service along with The Washington Post Monday, for their stories based on NSA documents provided by Edward Snowden. Stan Honda/AFP/Getty Images hide caption

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Volunteers scan financial documents in a building at the residence of Ukraine's former President Viktor Yanukovych for further investigations in Kiev Wednesday. Some documents were fished out of the Dniepr river where they were dumped as the former President fled the city. Etienne De Malglaive/Getty Images hide caption

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Reporter Glenn Greenwald, who became famous reporting on NSA contractor Edward Snowden's disclosure of the NSA's government surveillance programs, is leaving the Guardian to form a new media company with eBay founder Pierre Omidyar. Vincent Yu/AP hide caption

itoggle caption Vincent Yu/AP