Apple-Google Virus-Tracking Rules Put Apps in a Privacy Bind

"The persistent obstacles to a tech fix for contact tracing underscore that there isn’t a clear-cut way to stop the virus while keeping privacy intact, said Ryan Calo, a law professor at the University of Washington in Seattle who specializes in privacy and technology.

“There’s a role for technology to help with manual contact tracing, but there’s no way to do that that I’ve seen without privacy trade-offs,” Calo said. “You can’t get out of a pandemic with a clever app.”"