JK Rowling 'duped' by PM as Leveson web petition builds

JK Rowling has said she feels "duped and angry" by David Cameron's refusal to back a new newspaper watchdog with legislation, as recommended by the Leveson Inquiry.

The Harry Potter author spoke out as a petition calling for the new regulator was signed by tens of thousands of people online.

ITV News's Political Correspondent Alex Forrest reports: