Journal entry #6 the dark web

After watching the documentary I learned that people are watching you and that they can track you off your WiFi signal. I found shocking about this video is how there is a drug market on line that people can buy drugs on the internet. I'd like to know more about how are they tracking you and more about bitcoin and how it works. I wonderd how they could be alloowed to ship drugs to you. How would they be allowed on planes and trucks to be shiped?