I know this, and I'm not going to pretend that there isn't pretty liberal data sharing between intelligence + cellular companies, but I think it would be easier

I know this, and I'm not going to pretend that there isn't pretty liberal data sharing between intelligence + cellular companies, but I think it would be easier to regulate an interface between private companies + government, rather than regulate use of already retained data. For now, you can choose to not bring your cell phone on that trip to the seedy part of town, so we got that going for us.