Entwistle: Jimmy Savile sex abuse scandal 'matter of grave regret'
Director general George Entwistle has defended the BBC's response to the Jimmy Savile sex abuse scandal, but accepted it raised questions of trust.
He told the Commons culture committee: "This is a gravely serious matter and one cannot look back at it with anything other than horror, frankly, that... his activities went on as long as they did undetected."