Residents gather at the site of a car bomb attack in the Kamaliya district in Baghdad April 15, 2013. Car bombs and attacks on cities across Iraq, including two blasts at a checkpoint at Baghdad international airport, killed at least 20 people and wounded more than 200 on Monday, police said. The wave of attacks in Baghdad, Kirkuk, Tuz Khurmato and other towns to the north to south, came days before Iraqis vote in provincial elections that will test political stability more than a year after U.S. troops left the country. REUTERS/Mohammed Ameen (IRAQ - Tags: CIVIL UNREST)