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.
More top news
People are requesting refunds for tickets to a popular Cardiff festival as the main act has been cancelled.
A LEGO replica of Caerphilly Castle could become an official set if it gets enough public votes.
An increasing risk of further rain and thunderstorms developing as the afternoon goes on.