Contact tracing requires that: a) You give the contact tracing system a complete and accurate history of your contacts. b) You actually self-isolate when told

Contact tracing requires that: a) You give the contact tracing system a complete and accurate history of your contacts. b) You actually self-isolate when told you've had contact with an infectious person. The civil liberties crowd will fight tooth and nail against a such that it is not possible to compel b. In the absence of enforcement, the conspiracy theorists will ignore it and the merely lazy will cheat. Not even a competent attempt at contact tracing is going to work on the American people.