WASHINGTON.- Former Homeland Security secretary and Chairman, Committee of Conscience, US Holocaust Memorial Museum Michael Chertoff speaks at a press conference on the release of a report on the plight of the Yezidi people of northern Iraq, by the Holocaust Memorial Museum’s Simon-Skjodt Center for the Prevention of Genocide, on November 12, 2015 at the Holocaust Museum in Washington, DC. AFP PHOTO/MANDEL NGAN