The question of whether to renew Britain’s independent nuclear deterrent has moved to the centre of the political stage. Arguments on both sides are complex and finely balanced Opposition to nuclear weapons is the defining ethical issue of Jeremy Corbyn’s leadership of the Labour Party. His supporters are proposing a big debate about Trident and unilateral nuclear disarmament at this year’s party conference.But that is likely to be a bit late. The Cameron Government is now planning a vote in the Commons to approve the building of the new flotilla of nuclear missile launch submarines by June at the latest. The whole debate about nuclear weapons, their deterrent value or otherwise, and the issues of nuclear security and proliferation is a lot more quirky, complicated and