Homeland Security Listening to Boats in Hudson River
Tuesday, October 27, 2009 - 14:49
in Mathematics & Economics
Monitoring the daily ship traffic of a busy waterway like the Hudson River isn't an easy task for the Department of Homeland Security. The biggest ships are required to carry an Automatic Identification System that broadcasts information about their identity and location, but boats weighing less than 300 tons are often an invisible security risk.