Tehran - A top Iranian cleric said on Friday the United States was within Iran's "firing range", a day after supreme leader Ayatollah Ali Khamenei vowed to hit back at US interests worldwide if attacked. "Americans have surrounded us but it works to our advantage. They are within our firing range in the east, west and elsewhere," Ayatollah Ahmad Jannati said in his Friday prayer sermon carried live on state radio. He was referring to the US military presence in neighbouring Iraq and Afghanistan as well as in the Gulf waters off southern Iran. "Would you dare to violate Iranian...