-- A federal judge refused Monday to toss out a charge that could lead to a minimum 30-year prison term for a Caltech grad student implicated in a multimillion-dollar "eco-arson" spree at SUV dealerships. William Jensen Cottrell, 24, is charged with arson, conspiracy to commit arson and the use of a destructive device in a violent crime. The latter charge carries a mandatory minimum of 30 years in federal prison if Cottrell is convicted -- far longer than he would face if convicted only of the other charges. The defense employed a number of legal arguments to try to persuade...