Tom Scott - Britain's End-of-the-World Bunkers 08102015

Deep in the Essex countryside lies Kelvedon Hatch, and the Secret Nuclear Bunker that's now an off-beat tourist attraction. Inside, I met up with Greg Foot from the BBC's Brit Lab, and discovered the rather optimistic 1980s plans for tracking nuclear fallout, and helping the survivors of a nuclear war... if there were any.