The Submarines are being built because the Vanguard-Class are coming to the end of their design life - they have now been in service for 30 years and by the time the new Dreadnought-Class are in service they will have been operational for more than 40 years.

"Whether you like it or not, "Trident renewal" is the common linguistic currency now and isn't going away. It may represent inaccurate shorthand to you, but shorthand it is and it conveys clearly enough that we are going to continue to have Trident and that some aspects of the system for delivering it are being renewed (otherwise it wouldn't be costing all those billions). Nowt wrong with that understanding of it, is there?"

1: It is a misrepresentation.

2: It is inaccurate

3: It is misleading as it suggests to the pig ignorant that we are investing in a completely new weapons system to replace Trident

All depends I suppose on what you expect from a responsible press and MSM - I'd rather have them objective and factually accurate, with you it would appear that anything goes no matter how slapdash and untrue.