said by ZachAttack:If you're really interested in tracking someone, you can track someone by MAC Address or by physical surveillance. Like someone else said were all so boring it's not worth it, besides I don't think the FBI has enough manpower to follow everyone around.
Speaking of name glowing in neon above your head, awesome novels by Daniel Suarez, Daemon and Freedom™ have names floating above people's heads. Haha!
Mac address easy to change so that is kind of hard. It's true that following everyone around is nearly impossible.
