Chatrie and the Fourth Amendment's Lag Behind the Rest of the Government on Data Listening to the Oral Arguments in *Chatrie*, it became clear to me that this case demonstrates a significant gap in the technical understanding of technology and data. It's an understandable gap; Justices and Lawyers are not Architects, Software Engineers, Infosec specialists, etc. But *Chatrie* in particular establishes the risks in this significant gap in this area of the Governments' understanding: real world impacts that deprive individuals of rights and expose them to risk of unauthorized or inappropriate Surveillance and Searches. It would be more excusable if other areas of the government had not already expressed a significantly stronger grasp of these technical details, such that they are codified in Statutes, Privacy regulations, and regulations and rules by NARA.…