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.
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Artists have retold the stories of "imponderable brutality and evil" in works created to remember the Holocaust.
ITV News joins 85-year-old Holocaust survivor Zigi Shipper on his emotional return to the Auschwitz death camp.