Sigh. Someone tell Bruce Schneier his new movie plot terror threat[1] is here: someone homebrews a GPS signal transmitter to open all the train doors at rush h

Sigh. Someone tell Bruce Schneier his new movie plot terror threat[1] is here: someone homebrews a GPS signal transmitter to open all the train doors at rush hour ... preferably on the wrong side. [1] https://www.schneier.com/essays/archives/2005/09/terrorists_dont_do_m.html https://www.schneier.com/essays/archives/2005/09/terrorists_...