Mourning in Iraq.<br/> Bombers and gunmen targeting Iraqi traffic police in a series of attacks across Baghdad killed at least five people, including two policemen on Monday.<br/> Militants struck in at least four areas of the capital, highlighting ongoing security risks as U.S. troops prepare to leave Iraq by the end of the year.<br/> Insurgent attacks on the usually unarmed traffic police have been rare. But Iraq started arming some traffic police after a series of attacks last year that killed dozens of people.<br/> In Monday's attacks, a suicide bomber killed one civilian and wounded seven others, when he blew himself up in Baghdad's west-central Mansour district<br/> In northern Baghdad, gunmen in a car opened fire at a group of traffic police, killing four people, including two police officers<br/> Three roadside bombs wounded at least 11 people, including nine traffic policemen in eastern Baghdad and another bomb attack wounded five people<br/> Monday's attacks underscore the ability of insurgents to hit multiple targets in the capital despite security improvements.<br/> All U.S. forces in Iraq will leave by the end of the year.<br/> Deborah Lutterbeck, Reuters.