Seaman describes life onboard a British nuclear submarine

Squeezed between mountains on one side and the Gareloch on the other, Faslane on the Scottish west coast has been home to the UK's nuclear deterrent for half a century.Royal Marines from 43 Commando Fleet Protection are on minutes notice to respond to attempted sabotage.Royal Military police patrol the waters around the base, keeping yachts and private boats at a distance.