Subscribe to Channel 4 News: http://bit.ly/1sF6pOJ Now it's Sony who've had to beef up security after several unreleased movies found their way onto the internet. The prime suspect: is North Korea, and Pyongyang is certainly not denying it. Should Sony have pulled 'The Interview'? http://bit.ly/1sO3KX6 Top stories: http://bit.ly/1wdbIG1