Sheldon Silver was one of the state's most powerful politicians
                                
                                
                                    (Newser) -
                                    Former Assembly Speaker Sheldon Silver, a backroom master whose name was synonymous with political power in New York for a generation, was sentenced Tuesday to 12 years in prison, destined to take his place atop the state's crowded lineup of crooked politicians behind bars. Silver, a 72-year-old Manhattan Democrat,...