TEHRAN (Reuters) - An Iranian journalist has been jailed for 14 years on charges ranging from espionage to insulting the country's leaders in an unusually heavy sentence in Iran, where tens of journalists have been tried in recent years. Rights activists said on Tuesday that Arash Sigarchi, 28, was convicted by the Revolutionary Court in the Caspian province of Gilan in northern Iran. Sigarchi, a newspaper editor in Gilan who also wrote an Internet journal or "weblog", was arrested last month after responding to a summons from the Intelligence Ministry. "In total, he has been given 14 years in prison,"...