There is a handy dandy map in this link. <a href="http://www.wired.com/threatlevel/2008/10/aclu-assails-10/Notice">http://www.wired.com/threatlevel/2008/10/aclu-assails-10/Notice</a> that San Francisco, LA, San Diego, Washington D.C., New York, and other major cities fall within this 4th Amendment-free zone.