Independent: New Yorker George Pakenham leaves his home on the Upper West Side each morning in his suit and takes the subway to Wall Street, where he works on the mortgage desk of an international investment bank. Unlike the other commuters, he doesn’t walk with his head down, lost in the crush of worker bees scurrying to their jobs. Instead he has his eyes and ears tuned in to the traffic, looking out for stationary vehicles. If he spots a car or van which isn’t moving but has the engine running, …