New York Times: At Vermont Yankee, a nuclear reactor on the ropes, the search for a tritium leak that may doom the plant is proceeding as quickly as possible — which is to say, at a painstaking pace. Over the last few weeks, in the buildup to a vote Wednesday in which the State Senate approved shutting down the plant, engineers have been digging well after well here in an exploratory strategy that evokes the child’s game of Battleship. At each spot, workers measure the level of radioactive tritium …