Pfc. Christina Fuentes Montenegro and other Marines from Delta Company, Infantry Training Battalion, School of Infantry-East, receive final instructions prior to assaulting an objective during the Infantry Integrated Field Training Exercise aboard Camp Geiger, N.C., Nov 15, 2013. (U.S. Marine Corps photo)
FBI director James Comey as he gestures during a news conference at FBI headquarters in Washington. FBI director Comey has caused huge offense to a U.S. ally: using language to suggest that Poles were accomplices in the Holocaust. On Monday, April 20, 2015 Poles were waiting to see if FBI director James Comey apologizes _ something Polish Foreign Minister Grzegorz Schetyna said he expected so the matter can be settled. (AP Photo/ Evan Vucci, File)
Critics maintain some of the world's most popular computer games allow players to commit such violations of accepted international standards as shooting wounded prisoners, torturing detainees or using prohibited chemical weapons to defeat an enemy force — but without any attendant negative consequences.
Critics say that violent video games like "Ghost Recon" and the "Call of Duty" series often depict kidnappings, murdering civilians and torture as crucial to the gamer's missions. Military officials are hoping that future combat-style games can show the consequences of such actions as well as hew more closely to international standards.
Pedestrians pass a photograph of Boston Marathon bombing victim Martin Richard, Saturday, April 18, 2015, in Boston, at the spot where the second bomb detonated at the marathon in 2013. The 119th Boston Marathon will be run on Monday. (AP Photo/Michael Dwyer)
This undated image made from a video released by Islamic State militants, Sunday, April 19, 2015, shows a group of captured Ethiopian Christians taken to a beach before they were killed by Islamic State militants, in Libya. (Militant video via AP)
Oklahoma City Bombing Memorial Executive Director Kari Watkins holds hands with former U.S. President Bill Clinton during a remembrance ceremony, Sunday, April 19, 2015, at the Oklahoma City National Memorial & Museum in Oklahoma City. People gathered at the former site of the Oklahoma City federal building to commemorate the 20th anniversary of the terrorist bombing there that killed 168 people and injured many others. (Doug Hoke/The Oklahoman via AP, Pool)
Former President Bill Clinton speaks during a remembrance ceremony, Sunday, April 19, 2015, at the Oklahoma City National Memorial & Museum in Oklahoma City. People gathered at the former site of the Oklahoma City federal building to commemorate the 20th anniversary of the terrorist bombing there that killed 168 people and injured many others. (Doug Hoke/The Oklahoman via AP, Pool)
Afghan security forces members inspect the site of a suicide attack near a new Kabul Bank in Jalalabad, east of Kabul, Afghanistan, Saturday, April, 18, 2015. A security official says that at least 22 people have been killed after a suicide bomber attacked a bank branch in eastern Afghanistan. (AP Photo)
Army Spc. Matthew Tattersall of 2nd Battalion, 505th Parachute Infantry Regiment, 3rd Brigade Combat Team, 82nd Airborne Division, took his fish, "Willy MakeIt," with him on his final paratrooper jump.
In this image made with a mobile phone, Iraqi security forces and tribal fighters gather for a patrol in central Ramadi, Iraq, early Friday, April 17, 2015. In Iraq's western Anbar province, Iraqi special forces maintained control of the provincial capital, Ramadi, after days of intense clashes with the Islamic State group left the city at risk. Sabah Nuaman, a special forces commander in Anbar, said the situation had improved early Friday after airstrikes hit key militant targets on the city's fringes. (AP Photo)
Kosovo President Atifete Jahjaga lays flowers on coffins of 21 Kosovo Albanians killed during 1998-99 war with Serbia as they are buried in the village of Cikatove e Vjeter, Kosovo, on Friday, April 17, 2015. (AP Photo/Visar Kryeziu)
Joint Chiefs Chairman Gen. Martin Dempsey (left) briefing reporters alongside new Defense Secretary Ashton Carter, said the U.S. military is focusing its assistance more heavily on protecting the strategic city of Baiji than on Ramadi, the capital of Al Anbar province. (Associated Press)
Militiamen loyal to President Abed Rabbo Mansour Hadi ride on an army vehicle on a street in Aden, Yemen, on March 20, 2015. Yemen's Shiite rebels, backed by supporters of former President Ali Abdullah Saleh, have seized the third-largest city after capturing the capital Sanaa in September, effectively splitting the country in half and hindering U.S. efforts to combat a powerful local al Qaeda affiliate. Hadi, a close U.S. ally, fled house arrest in Sanaa last month and has set up a base in the port city of Aden, the former capital of the once-independent south. (Associated Press) **FILE**
Flight for a future: A World Airways jet on April 3, 1975, was the first American airliner to carry refugees as part of Operation Babylift. The children were evacuated as Saigon fell to the North Vietnamese army. (ASSOCIATED PRESS)