Gunmen and a suicide bomber storm the provincial council in Baqubah, the capital of Diyala province. Iraqi forces retake the building, but the latest in a string of assaults raises questions about security as U.S. forces plan their withdrawal. Separately, the Pentagon announces that two U.S. soldiers are killed in southern Iraq.Armed men on Tuesday stormed the provincial council in Baqubah, the capital of Diyala province, killing at least eight people in the latest assault on government buildings in Sunni parts of Iraq.