Watch the full interview with the Prime Minister from tonight's programme.
Mr Cameron confirmed that Wales will host the 2014 Nato Summit, an event that he described as "a great moment for Wales to advertise its modern and economically brilliant face to the world".
He also said that an announcement on devolved powers for Wales will be made on Friday.
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Police carried out door-to-door enquiries.
The UEFA Champions League final in Cardiff this Saturday is billed as the biggest ever sporting event in the UK since the 2012 Olympics.
Cloudy with patchy rain or drizzle, possibly turning heavier for a time.