As an aside, why is it not a law that the government can't pay another entity to do something it's not allowed to do itself, without a warrant? I'm thinking about geo data from mobile apps.
It’s due to the third party doctrine, a Supreme Court precedent
https://en.wikipedia.org/wiki/Third-party_doctrine
It’s due to the third party doctrine, a Supreme Court precedent
https://en.wikipedia.org/wiki/Third-party_doctrine