“The 6,168 pages of location records we reviewed contain approximately 336,000 location points obtained from people’s phones.”
DHS can’t get your location without a warrant, so it buys it from Venntel and Babel Street instead. Venntel claims 15 billion location points a day from more than 250 million devices. CBP, ICE and the Secret Service all bought in. The Fourth Amendment has a price tag, and the data brokers set it.