Intrinsically any system that keeps tabs on whole populations and allows you to identify a bad person will allow you to identify any person. I'll go out on a li

Intrinsically any system that keeps tabs on whole populations and allows you to identify a bad person will allow you to identify any person. I'll go out on a limb and say that in the history of humanity not a single system that was used to keep tabs on a good chunk of populations did so without extensive abuse. If we had a system to read all your messages, see all your pictures, listen to all your conversations, and check all your locations it would only be used to stop terrorists and pedophiles.