In Pictures: US military muscle
In Pictures: South Korea show of force
In Pictures: The F-22 raptor aircraft
In Pictures: Iran's military might
Gallery: Top notorious spies
Gallery: Who has nukes?
Photographer and filmmaker Tim Hetherington works at a rally in the rebel stronghold of Benghazi in eastern Libya on March 25. Mr. Hetherington, the co-director of the Oscar-nominated Afghan war documentary 'Restrepo,' died in the besieged Libyan town of Misurata on April 20, doctors said. Finbarr O'Reilly/Reuters
Getty Images photographer Chris Hondros walks through the streets on an unspecified date in 2003 in Monrovia, Liberia. Mr. Hondros was killed on April 20 after coming under fire in the besieged Libyan town of Misurata. Reuters/Getty Images/Handout/File
Sebastian Junger (l.) and Tim Hetherington, co-directors of the Oscar-nominated Afghan war documentary 'Restrepo,' are photographed on location in the Korengal valley of Afghanistan in 2007. EFE/Tim A. Hetherington/Mental Picture/Newscom/File
War photographer Tim Hetherington (c.) is assisted by Libyan rebels as he climbs down a building after gunshots rang out from inside by loyalist forces in the besieged city of Misurata on April 20, hours before he was killed in the city while covering the conflict. PHIL MOORE/AFP/Newscom
Tim Hetherington photographed this unidentified US soldier resting in a bunker in the Korengal Valley, Afghanistan, in 2007. Mr. Hetherington won the World Press Photo of the Year 2007 for the photo. AFP/ANP/Vanity Fair/Newscom/File
Tim Hetherington took this photograph of Misha Pemble, startled by the sound of gunfire during a firefight across the valley with insurgents in the Korengal Valley, Kunar Province, Afghanistan, in 2008. Courtesy of Tim Hetherington/National Geographic/File
Tim Hetherington (l.) and Sebastian Junger (r.) arrive at the 83rd Annual Academy Awards in Los Angeles on Feb. 27 to find out who would win Best Documentary ('Inside Job' won the award). 'Restrepo,' which the two men co-directed, was nominated for an Oscar. Zuma Press/Newscom/File
This undated photograph shows Getty Images photographer Chris Hondros in Afghanistan. AFP/Getty Images/Newscom/File
Getty Images photographer Chris Hondros stands in front of a burning building while on assignment in Misrata, Libya, on April 18. Reuters/Getty Images/Handout
Getty Images photographer Chris Hondros walks through the ruins of a building in southern Beirut, Lebanon, in 2006. Reuters/Getty Images/Handout/File
Chris Hondros took this photograph of ousted Iraqi President Saddam Hussein sittting in court as his trial for the 'Anfal' offensive resumed in Baghdad in 2006. In the genocide trial, Saddam and six co-defendants were accused of killing 182,000 Kurds in 1988, when government troops swept through Kurdistan, burning and bombing thousands of villages. Chris Hondros/AFP/Getty Images/Newscom/File
Photos of the Day: Photos of the day 04/27
Photos of the Day: Photos of the day 04/26
Photos of the Day: Photos of the Day 04/25
In Pictures: Where Your Clothes Come From
In Pictures: Millenium Development Goals: GLOBAL PROGRESS REPORT
Photos of the Day: Photos of the Day 04/24
In Pictures: Mexico's Economy
Photos of the Day: Photos of the day 04/23
/Photo-Galleries/Photos-of-the-Day/2013/Photos-of-the-day-04-27
/Photo-Galleries/In-Pictures/Coming-together-The-aftermath-of-the-Boston-Marathon-bombings
/Photo-Galleries/Photos-of-the-Day/2013/Photos-of-the-day-04-26
/Photo-Galleries/Photos-of-the-Day/2013/Photos-of-the-Day-04-25
/Photo-Galleries/In-Pictures/Where-Your-Clothes-Come-From
/Photo-Galleries/In-Pictures/Millenium-Development-Goals-GLOBAL-PROGRESS-REPORT
/Photo-Galleries/Photos-of-the-Day/2013/Photos-of-the-Day-04-24
/Photo-Galleries/In-Pictures/Mexico-s-Economy
/Photo-Galleries/Photos-of-the-Day/2013/Photos-of-the-day-04-23
/Photo-Galleries/Photos-of-the-Day/2013/Photos-of-the-day-04-22
/Photo-Galleries/In-Pictures/Explosion-at-a-fertilizer-factory-in-West-Texas
/Photo-Galleries/Photos-of-the-Day/2013/Photos-of-the-day-04-18
/Photo-Galleries/Photos-of-the-Day/2013/Photos-of-the-day-04-17
/Photo-Galleries/In-Pictures/Pakistan-caught-between-ancient-and-modern
/Photo-Galleries/Photos-of-the-Day/2013/Photos-of-the-day-04-16
/Photo-Galleries/In-Pictures/Environmental-casualties-of-city-life
/Photo-Galleries/Photos-of-the-Day/2013/Photos-of-the-Day-04-15
/Photo-Galleries/Photos-of-the-Day/2013/Photos-of-the-day-04-13
/Photo-Galleries/In-Pictures/Indonesia-a-nation-of-islands
/Photo-Galleries/Photos-of-the-Day/2013/Photos-of-the-day-04-12
/Photo-Galleries/In-Pictures/Around-the-world-with-John-Kerry
/Photo-Galleries/In-Pictures/Egypt-Grapples-with-an-Uncertain-Future
/Photo-Galleries/In-Pictures/Myanmar-Edges-Into-the-Open
/Photo-Galleries/Photos-of-the-Day/2013/Photos-of-the-day-04-11
/Photo-Galleries/In-Pictures/Gangnam-s-Style
/Photo-Galleries/In-Pictures/Weather-extremes-2013
/Photo-Galleries/Photos-of-the-Day/2013/Photos-of-the-day-04-10
/Photo-Galleries/In-Pictures/Rescued!-Marine-life
/Photo-Galleries/Photos-of-the-Day/2013/Photos-of-the-day-04-09
/Photo-Galleries/In-Pictures/Federal-taxes-by-the-numbers