Nuclear weapons: British nuclear submarine missile test failed. This is the second time there has been a mistake in a nuclear missile test, British media reports.
The Ministry of Defense insists that Britain's nuclear deterrent remains "safe and effective" The launch would have been successful if it had actually been carried out with a nuclear warhead, Sky News broadcaster quoted a source as saying. The submarine is one of four of the so-called Vanguard class that have been in service since the 1990s and are scheduled to be replaced with larger Dreadnought-class submarines in the 2030s.