Neil Mackay - the Sunday Herald's multi-award winning Home Affairs and Investigations Editor - hears from fellow investigative journalists about the biggest stories of their careers. For the BBC's Series 'The Hunt for Britain's Paedophiles' Bob Long embedded himself in the offices of Scotland Yard's Paedophile unit for two years and was exposed daily to horrific images and footage of the abuse and violence against children, as well as coming face to face with the people responsible for these crimes, Neil explores what on earth drives them to pursue a scoop well beyond the point of their own safety and possibly their own sanity? Show less