I’m really confused. Why would they need to buy that data from AT&T and why was it assumed they didn’t already have this data? Would they not automatically have it when the call is transmitted through cell towers and satellites which are owned by the government?
Also why is location data such a sticking point? Your phone has to bounce off the nearest tower to make a call to begin with, which makes it relatively obvious where you and the call receiver are.
Why would it be assumed that they didn’t already have all this data? Companies collect all of what’s listed in order to charge you for your phone usage, and then they have to store that information for a period of several years, which the government could easily access.