Paul Krugman: Three Expensive Milliseconds

Four years ago Chris Christie, the governor of New Jersey, abruptly canceled America’s biggest and arguably most important infrastructure project, a desperately needed new rail tunnel under the Hudson River. Count me among those who blame his presidential ambitions, and believe that he was trying to curry favor with the government- and public-transit-hating Republican base.

Even as one tunnel was being canceled, however, another was nearing completion, as Spread Networks finished boring its way through the Allegheny Mountains of Pennsylvania. Spread’s tunnel was not, however, intended to carry passengers, or even freight; it was for a fiber-optic cable that would shave three milliseconds — three-thousandths of a second — off communication time between the futures markets of Chicago and the stock markets of New York. And the fact that this tunnel was built while the rail tunnel wasn’t tells you a lot about what’s wrong with America today.