The UK's nuclear weapons centre in Berkshire is set to be expanded, the defence secretary has said. John Healey visited the Atomic Weapons Establishment (AWE) at Aldermaston to mark its 75th anniversary, saying the site is providing security for "generations to come". Report by Kennedyl. Like us on Facebook at http://www.facebook.com/itn and follow us on Twitter at http://twitter.com/itn