Plans by the US and UK governments to prolong the life of Trident nuclear weapons have hit a serious snag because of a dangerous and mysterious ingredient codenamed Fogbank. As a result, politicians are likely to come under pressure to fund the design of new warheads instead.
Both countries want to refurbish the ageing W76 warheads at the tip of Trident missiles, to make them safer and more reliable. But now their programmes face delays due to manufacturing problems at the Y-12 National Security Complex at Oak Ridge in Tennessee. A new $50 million plant built to replace a facility…
