Previously, we had some balance between privacy and accountability. A bystander or a victim of a collision could remember license plate numbers and give them in a police report. The police could tail you (but only you, because $$$) to discover your movements. But government agents couldn't track the movements of all the people, all the time. Now they can.
The societal balance of power has shifted and is now seriously lopsided in favor of the rulers. And cheerleaders like you don't mind, as long as you can purchase a little temporary safety...
EDIT: Rather then downvote, offer an example of a masked, unidentified person abducting someone who is neither a kidnapper nor secret police.
You're right: because I do not want illegal immigrants in my country I haven't "read a single history book."