New York City is the greatest public works project in the USA . It is a city of tubes, grids, circuits and networks. We are organised by numbered floors and numbered streets and numbered apartments, fed and watered through great pipes and tunnels and bridges, shuttled to and fro in shifts along lines. On Monday night the magnificent machines were revealed to us, as they failed one by one. American newscasters hyperventilate about everything, and foam at the mouth when the subject is weather systems over the Northeastern United States, so there seemed no special reason to pay them any urgent attention in the days leading up to Sandy. The storm only became real when the governor announced the closure of the subway system on Sunday morning. The process takes eight hours. Employees moved train cars, removed tracks that might be damaged by salt water, primed pumps, cleaned drains, evacuated stations and cleared rail yards prone to flooding. That night, the Metr...