GRIGNY, France, Nov 6 (Reuters) - Rioters fired shots at police in an 11th night of riots in France on Sunday, injuring 10 policemen, two of them seriously, police said. Some 200 youths were lobbing stones and other objects at police in Grigny, south of Paris, a police spokesman said, adding that some of the rioters had fired at officers with shotguns, hitting 10 policemen. Two officers were being treated in hospital, one with lead shot wounds to the throat, the other with wounds to a leg. Asked whether the rioters could have killed someone, the spokesman said: "Probably...