Tom Watson: 'Phone hacking is only the start. There's a lot more to come out'

The Labour MP has won the admiration of fellow politicians for doggedly nvestigating the phone-hacking scandal. What has the experience taught him, how has it changed his life – and what revelations are still to come?

John Harris
guardian.co.uk, Tuesday 2 August 2011 19.59 BST

A month ago, Tom Watson received word that the Guardian was about to expose the hacking of Milly Dowler's phone by the News of the World. With 72 hours to go, he cleared his diary; a few days later, he was averaging three hours sleep a night, as he and his staff picked through leaked documents, newspaper archives, personal testimony from phone-hacking victims, and more. As the MP who had been obsessively trying to cut through the murk surrounding News International for two years, he well knew that the most dramatic chapter in the two-year phone-hacking saga had arrived – and the imperative now was to work harder than ever.

So how have the last few weeks been? "Sleep-deprived, totally crazy," he says, sitting in his parliamentary office during what seems to be a rare moment of calm. "But also, there's been a great sense of relief. I think I said something to David Cameron about a month before: that there were powerful forces trying to cover this story up. At some points over the last two years, I thought it might blow. But I've also thought that the lid could be welded back on. But when Nick Davies broke the Milly Dowler story, that was the point where I knew they'd never get the lid back on."