U.S. soldiers keep watch at the entrance of a U.S. base in Panjwai district Kandahar province, March 11, 2012. The U.S. embassy in Kabul warned on Sunday that anti-American reprisals are possible after Western forces went on a rampage in southern Kandahar province, killing at least 15 civilians.REUTERS/ Ahmad Nadeem (AFGHANISTAN - Tags: CIVIL UNREST CRIME LAW)

Afghan men shout anti-U.S slogans during a protest outside the U.S. military base in Bagram, north of Kabul February 21, 2012. More than 2,000 Afghans protested outside the main U.S. military base in Afghanistan on Tuesday over a report that foreign troops had improperly disposed of copies of the Koran and other religious items, Afghan officials said. U.S. helicopters fired flares to try to break up the demonstrators. REUTERS/Mohammad Ismail (AFGHANISTAN - Tags: CIVIL UNREST POLITICS MILITARY RELIGION)

Afghan protesters throw rocks towards a water canon near a U.S. military base in Kabul February 22, 2012. Several people were wounded on Wednesday, witnesses said, when shots were fired as hundreds of angry Afghans gathered in a second day of violent clashes after copies of the Koran, Islam's holy book, were burned at NATO's main base in Afghanistan. REUTERS/Ahmad Masood (AFGHANISTAN - Tags: CIVIL UNREST RELIGION)

A U.S.soldier walks through the prison of Abu Ghraib, outside Baghdad, Iraq, May 5, 2004. President George W. Bush promised the Arab world on Wednesday that those responsible for abusing Iraqi prisoners will be punished. A U.S. general's probe into abuse at Abu Ghraib recounted detainees being sodomised, beaten, kept naked for days and forced to masturbate while being filmed. Completed two months ago, the report's findings surfaced only after the photographs. REUTERS/Pool/Anja Niedringhaus CRB

picture released by ABC News May 19, 2004 shows a woman identified as Specialist Sabrina Harman posing over the body of detainee Manadel a-Jamadi in Abu Ghraib prison. According to testimony from Spc. Jason Kenner, obtained by ABC News, the man was brought to the prison by US Navy Seals in good health. Kenner said he saw extensive bruising on the detainee's body when he was brought out of the showers, dead. Kenner says the body was packed in ice during a "battle" between CIA and military interrogators over who should dispose of the body. The Justice Department opened an investigation into this death and four others today following a referral from the CIA. The photo was taken by Sgt. Charles Fredrick who in e-mails to his family has asked why the people responsible for the prisoner's death were not being prosecuted in the same manner that he is. (EDITORAIL USE ONLY, MANDATORY CREDIT) REUTERS/HO/ABC News/Charles Fredrick JDP

U.S. Army PFC Lynndie England leaves the courthouse at Fort Hood, Texas, September 26, 2005 after being convicted on charges stemming from her involvement in the Iraq Abu Ghraib prison scandal that surfaced last year. England faces up to 10 years in prison and will be formally sentenced on Tuesday. REUTERS/Jeff Mitchell

Blackwater Chief Executive Erik Prince holds a photograph of the remains of a blown up vehicle in Iraq while testifying before the House Oversight and Government Reform Committee on security contracting in Iraq and Afghanistan on Capitol Hill in Washington, October 2, 2007. Blackwater, under investigation over deadly incidents in Iraq, defended its role on Tuesday, but lawmakers took aim at the company's actions in a Sept. 16 shooting in which 11 Iraqis were killed. REUTERS/Larry Downing (UNITED STATES)

A man who was wounded in a shooting attack by the security guards of Blackwater firm on Sunday, is helped by his relatives in a hospital in Baghdad, September 20, 2007. Iraqi Prime Minister Nuri al-Maliki suggested on Wednesday the U.S. embassy stop using American security firm Blackwater after a deadly shooting, saying he would not allow Iraqis to be killed in "cold blood". REUTERS/Ceerwan Aziz (IRAQ)

A frame grab from a video provided to Reuters on March 21, 2006 by Hamourabi Human rights group shows a body being carried, which Hamourabi says was loaded onto a truck with bodies of a family shot dead in their home in Haditha, in western Anbar province, Iraq. U.S. Marines could face criminal charges, possibly including murder, for their involvement in the deaths of up to two dozen Iraqi civilians in Haditha last November, a defense officials said on May 26, 2006. The investigation involves a November 19, 2005 incident in Haditha, about 140 miles (220 km) northwest of Baghdad.
(CREDIT : REUTERS/Hammurabi Organisation via Reuters TV/Files)
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Marine Corps Sgt. Frank D. Wuterich arrives for a pre-trial hearing with his lawyer Neal A. Puckett and girlfriend Melissa Balcombe at Camp Pendleton, California March 22, 2010. Military judge Lt. Col. David Jones was to hear a defense motion to dismiss charges against Staff Sgt. Frank Wuterich on grounds of undue command influence after Wuterich was charged in the killings of 24 Iraqis in Haditha in November 2005.
REUTERS/Mike Blake (UNITED STATES - Tags: POLITICS MILITARY CRIME LAW CONFLICT)

Hind, a girl who survived the Haditha 2005 massacre, sits on a chair at her uncle's house in Haditha, 190 km (120 miles) northwest of Baghdad October 13, 2010. Staff Sergeant Frank Wuterich, a U.S. Marine accused of leading the 2005 massacre of 24 civilians in the Iraqi city of Haditha, was spared jail time when he was sentenced on January 24, 2012 for his role in killings that brought international condemnation on U.S. troops. Picture taken October 13, 2010. REUTERS/Ali al-Mashhadani (IRAQ - Tags: CONFLICT MILITARY CRIME LAW CIVIL UNREST)

Salwann, the son of Reuters driver Saeed Chmagh, 40, cries during the funeral procession for Saeed Chmagh and his Reuters colleague photographer Namir Noor-Eldeen, 22, in Baghdad July 13, 2007, who were killed yesterday. The two Reuters employees were killed in eastern Baghdad at a time when clashes had been taking place between U.S. forces and militants in the area. REUTERS/Mohammed Ameen (IRAQ)

USA-AFGHANISTAN/ - Maps of Iraq and Afghanistan with timeline of incidents where US security forces have killed civilians and or offended Muslims. RNGS. (SIN02)