whenever the subject comes up. Certain areas of the world are becoming increasingly unsettled, and with the nuclear weapons 'club' potentially gaining new, and not altogether UK-friendly members it might be said that now is not the time for us to be laying aside a nuclear weapons capability.
Nuclear submarines are arguably the most effective deterrent of all, in that they represent a mobile, rapidly deployable force,one which can put itself within range of any target on the planet without refuelling.
Building costs are huge, but the money will stay almost entirely within the UK economy, and on balance I'm very much in favour of replacing our nuclear subs. In a potentially hostile world it doesn't do any harm to go softly and carry a big stick.