World War II veterans attend a ceremony marking the annual Holocaust Remembrance Day at the Yad Vashem Holocaust Memorial in Jerusalem, Monday, April 8, 2013. Israel came to a standstill for two mournful minutes Monday as sirens pierced the air in an annual ritual to remember the 6 million Jews systematically murdered by German Nazis and their collaborators during the Holocaust in World War II. (AP Photo/Oded Balilty)
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