There are several microwave radio networks built to link New York and Chicago for high-frequency trading purposes. These paths are several milliseconds shorter

There are several microwave radio networks built to link New York and Chicago for high-frequency trading purposes. These paths are several milliseconds shorter than the fiber paths and are a few years old at this point. The article should have mentioned this instead of jumping straight from fiber to neutrinos. Some details: http://online.wsj.com/article/SB10001424052702304065704577426500918047624.html http://online.wsj.com/article/SB1000142405270230406570457742...