German President Christian Wulff ,second left, lays a wreath at the Death Wall where during World War II German Nazis executed Polish resistance members at the former Nazi death camp of Auschwitz in Oswiecim, Poland, during observances marking the 66th anniversary of the camp's liberation on Thursday, Jan. 27, 2011. The Nazis killed more than 1 million people, mostly Jews, at Auschwitz. (AP Photo/Czarek Sokolowski)