Eight minutes. Eight minutes from Clapham to Waterloo. I am on a train. Everything seems normal. It always does. I travel into the city with a million Reginald Perrins and Nicola Borings every day. We always get to our offices. We always moan. But back in 1988 we might not have made it at all. Back in 1988, a wrongside signal failure led to a multi-train collision that killed 35 people. Eight minutes from Clapham to Waterloo. Eight minutes, yet it’s also thirty years. All-too-easy to forget what we knew thirty years ago...