Didn't you hear of Snowden's revelations?
NSA has full access such data. The police does not.
The police cares about murders and bank robberies. NSA does not.
NSA has full access such data. The police does not.
The police cares about murders and bank robberies. NSA does not.
https://www.theverge.com/2021/1/22/22244848/us-intelligence-...
The data is already being used by domestic law enforcement in a technique called parallel construction.