This photo dated December 6, 2011 shows Afghan Shia Muslim 12-year-old Tarana Akbari crying near dead and injured people after explosions during a religious ceremony at the Abul Fazel shrine in the centre of Kabul where Shia Muslims were marking the Day of Ashura. Agence France-Presse photographer Massoud Hossaini won the agency's first Pulitzer Prize for the picture on April 16 in the breaking news photography category.

This photo provided by the Pulitzer Prize Board was part of a group of photos by Craig F. Walker of The Denver Post that won the 2012 Pulitzer Prize for Feature Photography, announced on April 16. The photo depicts Brian Scott Ostrom, an Iraq war veteran who returned home to the U.S. with a severe case of post traumatic stress disorder.

This photo submitted by the Los Angeles Times is part of a 2011 Pulitzer Prize-winning entry for Feature Photography, ten-year-old Erica Miranda shows her scars after being shot three times in the back, knee and hip March 2, 2010, while playing basketball outside her home in Compton, Calif. A young man had walked up to the crowded street corner and started firing a handgun in what police believe was a gang assault. The Los Angeles Times has won a Pulitzer Prize for feature photography on Monday, April 18, 2011. The feature photography Pulitzer went to Barbara Davidson.

A dove is released at the recent memorial service for 5-year-old Aaron Jerel Shannon Jr., who died after he was shot in the head by a stray bullet on Halloween. Shannon had been modeling his new Spider-Man costume in the backyard of his South Los Angeles home.

This handout photograph titled "Prayer" by Nikki Kahn of the Washington Post won the 2011 Pulitzer Prize for Breaking News Photography as announced in New York, April 18, 2011. Survivors participate in a day of prayer at Champs du Mars in Port-au-Prince. Almost no one, it seemed, was spared tragedy. In a country whose government has all but collapsed, whose feeble economy has been crushed and whose people have been left destitute, the challenges were daunting.

This handout photograph titled "Life Amid the Ruins" by Carol Guzy of the Washington Post won the 2011 Pulitzer Prize for Breaking News Photography as announced in New York, April 18, 2011. A couple holds hands and walks amid the wreckage of their country's wounded landscape. Experts familiar with the rebuilding efforts in Haiti say relief work is finally speeding up under the guidance of the Interim Haiti Recovery Commission. The group has set a goal of removing 40 percent of the earthquake rubble by October and has approved projects such as highways, apartment buildings and 250 temporary schools for children. But even with these projects underway, rebuilding Haiti will take many years.