The problem is not the FBI buying tracking data without a warrant. Police forces don’t need a warrant to ask people what they saw or look at voluntarily disclosed CCTV footage.

The problem is that this data is being collected and aggregated in the first place. Oppression does not get better because you privatise it.

@david_chisnall

You're right, but there are good principled reasons for tackling both the supply and demand side of things. Allowing the government to skirt the intent of the 4th amendment by buying the stuff is also bad, including where it uses our own tax dollars against us.