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FILE - A group of Jews, including a small boy, is escorted from the Warsaw Ghetto by German soldiers on April 19, 1943. (AP Photo, File)

FILE - A group of Jews, including a small boy, is escorted from the Warsaw Ghetto by German soldiers on April 19, 1943. (AP Photo, File)

FILE - A picture taken just after the liberation by the Soviet army in January, 1945, shows a group of children wearing concentration camp uniforms behind barbed wire fencing in the Oswiecim (Auschwitz) nazi concentration camp. (AP Photo, File)

FILE - A picture taken just after the liberation by the Soviet army in January, 1945, shows a group of children wearing concentration camp uniforms behind barbed wire fencing in the Oswiecim (Auschwitz) nazi concentration camp. (AP Photo, File)

FILE - A picture taken just after the liberation by the Soviet army in January, 1945, shows a group of children wearing concentration camp uniforms behind barbed wire fencing in the Oswiecim (Auschwitz) Nazi concentration camp. (AP Photo, File)

FILE - A picture taken just after the liberation by the Soviet army in January, 1945, shows a group of children wearing concentration camp uniforms behind barbed wire fencing in the Oswiecim (Auschwitz) Nazi concentration camp. (AP Photo, File)

FILE - An aerial view of the Birkenau Extermination Camp at Oswiecim, Poland, August 25, 1944. (AP Photo, File)

FILE - An aerial view of the Birkenau Extermination Camp at Oswiecim, Poland, August 25, 1944. (AP Photo, File)

FILE - In this 1943 file photo, a group of Polish Jews are led away for deportation by German SS soldiers during the destruction of the Warsaw Ghetto by German troops after an uprising in the Jewish quarter. (AP Photo, file)

FILE - In this 1943 file photo, a group of Polish Jews are led away for deportation by German SS soldiers during the destruction of the Warsaw Ghetto by German troops after an uprising in the Jewish quarter. (AP Photo, file)

FILE - This June 1958 image shows buildings behind a defunct high voltage electric fence of the Nazi concentration camp Auschwitz I, Poland, which was liberated by the Russians, January 1945. (AP photo, File)

FILE - This June 1958 image shows buildings behind a defunct high voltage electric fence of the Nazi concentration camp Auschwitz I, Poland, which was liberated by the Russians, January 1945. (AP photo, File)

FILE - Part of the Auschwitz war crimes court inspects the former Nazi extermination center in Poland in Dec. 1964, where more than four million, mostly Jews, perished during World War II, from 1940 until 1945. (AP Photo, File)

FILE - Part of the Auschwitz war crimes court inspects the former Nazi extermination center in Poland in Dec. 1964, where more than four million, mostly Jews, perished during World War II, from 1940 until 1945. (AP Photo, File)