PORTLAND, Ore. (AP) -- An environmental activist was sentenced Thursday to more than three years in prison after pleading guilty to firebombing logging trucks and equipment at two Oregon companies in the spring of 2001. Jacob Sherman told Judge James Redden that he was "ashamed" of participating in the bombings. He has been linked to the Earth Liberation Front, a loose group of activists that the FBI has classified as an eco-terrorist group."There has not been a single day since (that) I have not thought about and regretted the role I played in those events," Sherman wrote in a letter...