Iraqi policemen shot dead four US soldiers and their local interpreter in the main northern city of Mosul on Tuesday, an interior ministry official said. "Four US soldiers and their Iraqi interpreter were killed by two Iraqi policemen who opened fire at them in the Dawasa district of (central) Mosul and then fled," the official told AFP, declining to be named. The incident took place during a US army visit to the Mosul headquarters of the Iraqi police in charge of protecting the city's bridges, police said. The bullet-riddled body of the interpreter was taken to the local mortuary. It...