So did you know that you cannot get the AIS information because this would constitute a national security issue? I find this interesting since my tax money does pay for the infrastructure and the marine industry has to pay for AIS transponders on all their vessels. The USCG does not provide a free feed to this data. I’m not sure if the data is classified or you could access it by filing a Freedom of Information Act request but then again what does a CD contain days or months worth of old GPS coordinates really do for you.
I just thought it was interesting.