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UNDATED: (INTERNET OUT, GRAPHIC CONTENT, EDITORIAL USE ONLY) In this undated still photo, an Iraqi detainee at Abu Ghraib Prison appears to be intimidated by a U.S. soldier using an trained dog. MANDATORY CREDIT: (Photo courtesy of Washington Post via Getty Images)

UNDATED: (INTERNET OUT, GRAPHIC CONTENT, EDITORIAL USE ONLY)  In this undated still photo, an Iraqi detainee at Abu Ghraib Prison appears to be intimidated by a U.S. soldier using an trained dog.  MANDATORY CREDIT:  (Photo courtesy of Washington Post via Getty Images)

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BAGHDAD, IRAQ, FEBRUARY 21: An Iraqi security officer stands guard outside the newly opened Baghdad Central Prison in Abu Ghraib on February 21, 2009 in Baghdad, Iraq. The Iraqi Ministry of Justice has renovated and reopened the previously named "Abu Ghraib" prison and renamed the site to Baghdad Central Prison. According to the Iraqi Ministry of Justice about 400 prisoners were transferred to the prison which can hold up to 3000 inmates. The prison was established in 1970 and it became synonymous with abuse under the U.S. occupation. (Photo by Wathiq Khuzaie/Getty Images)

BAGHDAD, IRAQ, FEBRUARY 21:  An Iraqi security officer stands guard outside the newly opened Baghdad Central Prison in Abu Ghraib on February 21, 2009 in Baghdad, Iraq. The Iraqi Ministry of Justice has renovated and reopened the previously named "Abu Ghraib" prison and renamed the site to Baghdad Central Prison. According to the Iraqi Ministry of Justice about 400 prisoners were transferred to the prison which can hold up to 3000 inmates. The prison was established in 1970 and it became synonymous with abuse under the U.S. occupation.  (Photo by Wathiq Khuzaie/Getty Images)

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BAGHDAD, IRAQ - OCTOBER 28: An Iraqi prisoner at Abu Ghraib slides through a hole cut in the bars of a cell in the criminal section of the prison October 28, 2005 on the outskirts of Baghdad, Iraq. Prisoners had planned an escape but were thwarted when a fellow inmate informed on them. The solid structure of the Abu Ghraib prison complex, infamous for photos of prisoner abuse in 2003, is now in the hands of Iraqi authorities, who house about 1,000 criminal prisoners at the site. The U.S. military, meanwhile, has about 4,600 suspected insurgents housed in tents on the same compound. (Photo by John Moore/Getty Images)

BAGHDAD, IRAQ - OCTOBER 28: An Iraqi  prisoner at Abu Ghraib slides through a hole cut in the bars of a cell in the criminal section of the prison October 28, 2005 on the outskirts of Baghdad, Iraq. Prisoners had planned an escape but were thwarted when a fellow inmate informed on them. The solid structure of the Abu Ghraib prison complex, infamous for photos of prisoner abuse in 2003, is now in the hands of Iraqi authorities, who house about 1,000 criminal prisoners at the site. The U.S. military, meanwhile, has about 4,600 suspected insurgents housed in tents on the same compound. (Photo by John Moore/Getty Images)

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A relative of an Iraqi prisoner being held by US authorities at the Abu Ghraib prison holds his hand to his face 08 May 2004 as another one shows a newspaper featuring photos of US soldiers abusing Iraqi prisoners inside the detention center located 30 kms west of Baghdad. Hundreds of Iraqis gather in front of the jail daily in the hope of getting news about their loved ones. AFP PHOTO/Roberto SCHMIDT / AFP / ROBERTO SCHMIDT (Photo credit should read ROBERTO SCHMIDT/AFP/Getty Images)

A relative of an Iraqi prisoner being held by US authorities at the Abu Ghraib prison holds his hand to his face 08 May 2004 as another one shows a newspaper featuring photos of US soldiers abusing Iraqi prisoners inside the detention center located 30 kms west of Baghdad.  Hundreds of Iraqis gather in front of the jail daily in the hope of getting news about their loved ones.    AFP PHOTO/Roberto SCHMIDT / AFP / ROBERTO SCHMIDT        (Photo credit should read ROBERTO SCHMIDT/AFP/Getty Images)