“You are being watched. The government has a machine.” But we carry most of the cameras in our cell phones. And we use plastic cards to purchase everything so we voluntarily tell them what we, personally, buy.
Jim Caveizel says to put a piece of black tape over your telephone. I’m going to do it and see if my phone “magically” stops working. Then I really will be freaked out!
Don't let it track you and don't use FarceBook, et. al. (Not even FR ;-) ).
Pay in cash wherever possible.
Electrical (Callin’ it “Black” is racis’) Tape would block the cameras and muffle the microphone but do nothing about keeping you in the cross-hairs as a moving target.