Trident: weapon of mass destruction

This is the second of a pair of articles looking at what Trident is, what it is said to be for and what some of its supporters candidly think of its uses. The first (see link below) asked if Trident was any use for defence? This second part shows how, beyond the big powers’ nuclear club, the rest of the world is now moving towards making nuclear weapons as illegal as other weapons of mass destruction, thereby making investment in them a very poor bet. Rachel Lever writes.