Iraq rebels have staged bomb attacks and battled US forces in a wave of violence that has seen the US military suffer one of its deadliest months since the 2003 invasion, as the country’s protracted power vacuum dragged. Bickering politicians warned that talks on forming a government of national unity that have already dragged on four months could take another month amid new differences between Iraq’s rival factions. Six people were killed in insurgent attacks Tuesday, including four in a roadside bomb near a restaurant in north Baghdad. Full Story