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

itoggle caption Efrem Lukatsky/AP

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

itoggle caption Stan Honda/AFP/Getty Images

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

itoggle caption Etienne De Malglaive/Getty Images

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

Before the attack: Two men are seen talking on a New York City subway platform Monday in this framegrab from a video released by the New York City Police Department. Moments later, police say, Ki-Suk Han (whose face is obscured) was pushed on to the tracks. New York City Police/Reuters /Landov hide caption

itoggle caption New York City Police/Reuters /Landov

A U.S soldier of 82nd Airborne patrols near a forward base in the Ghorak district of Kandahar southern Afghanistan. Rafiq Maqbool/AP hide caption

itoggle caption Rafiq Maqbool/AP