HMS Vanguard, Britain's first Trident submarine
No one has been more insistent that Britain must commit to replacing Trident than new defence secretary Liam Fox. Despite the lack of credible targets and the exorbitant cost, Dr Fox has fought doggedly for a new generation of nuclear weapons to protect Britain from "nuclear blackmail" by other states - apparently North Korea (possibly four missiles at most) and Iran (none at all) give him palpitations and sleepless nights.
But now, in a deliciously ironic twist, Dr Fox is being asked to put his department's money where his mouth is. Traditionally the Treasury pays for the capital investment in nuclear weapons, but such is the pressure to cut-back on government spending across the board that the Chancellor is now keen that the MoD should foot the bill instead.
