Shadow defence minister Kevan Jones has said it is "absolutely right and necessary" for the UK to retain an independent nuclear deterrent, but it must take into account the costs involved.
World events demonstrate that in an unpredictable era our country needs the ultimate security guarantee.
The precise nature of the deterrent must be judged on meeting military capability requirements and cost.
More top news
An astronaut has set off for NASA's first year-long mission to the International Space Station - leaving his identical twin back on Earth.
Taking money from the rich to give to the poor is a debate as old as Nottingham's mythic son, so why are people still so divided on welfare?
An unsettled weekend of weather is in store as conditions turn wet and windy from the west tonight.