Iraqi Prime Minister Nuri al-Maliki speaks on US-Iraqi relations at the United States Institute of Peace on October 31, 2013 in Washington, DC. Maliki's visit to Washington comes as his country is wracked by the worst unrest since 2008, and just a few weeks before the two-year anniversary of the withdrawal of American troops from Iraq. AFP MANDEL NGANMANDEL NGAN/AFP/Getty Images