'We don't comment on operational details'
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PM Theresa May on Trident missile test timings

23 January 2017 Last updated at 16:39 GMT

Theresa May is asked about when she knew about reported problems with a 2016 Trident missile test, but says the government does not comment "on operational details for national security reasons".

She later criticised the Labour leader for his stance on UK defence, and told BBC correspondent Eleanor Garnier: "I have absolute faith in our independent nuclear deterrent."