Underground Rescue

Jeff Porter was mulling over what sandwich to have on his breakfast break when he slowed at the signal before Edgware Road station and watched an approaching Circle line train on the adjacent track. As it drew level, Porter, a London Underground driver for 15 years, was startled to see a strange, bright yellow light inside the second carriage. "As I passed the carriage, my windscreen shattered," says Porter, 46. "The strangest part is that I never heard anything — no bang." Then he saw debris piled high on the tracks before him. "My first thought was, Have I done anything...