Exclusive - Trident programme to cost 167 billion pounds, far more than expected

By Elizabeth Piper LONDON (Reuters) - The overall cost of replacing and maintaining Britain's nuclear deterrent will reach 167 billion pounds, much more than expected, according to an MP's and Reuters' calculations based on official figures. The Scottish Nationalist Party, which wants Britain's Scotland-based nuclear-armed Trident submarines scrapped, called the sum "unthinkable and indefensible" at a time when deep cuts under the government's "austerity" policies mean "thousands of people acros