Secrets behind Clarkson fracas revealed in new book

Richard Porter, former script editor for BBC's motoring show Top Gear, has said the former host's punch was 'a smack in the chops' in his new book.

Titled 'And On That Bombshell: Inside the madness and genius of Top Gear', Porter reveals the events that led to Jeremy Clarkson's sacking and also all the backstage details on what the show was like to run.