keywords: falluja insurgency iraq iraqis troops
text: Iraqis, U.S. Hail Falluja Success, Threats Remain  FALLUJA, Iraq (Reuters) - U.S. Lieutenant-General John  Sattler declared on Thursday his forces had "broken the back of  the insurgency" in Falluja, but U.S. troops still faced dangers  in the city and guerrillas attacked elsewhere in Iraq.