What happened to coronavirus contact tracing on our phones?

Published: June 19, 2020, 9:27 a.m.

Earlier in this pandemic, Apple and Google joined forces to help create a shared underlying technology for digital contact tracing apps. But at least in the United States, they haven’t caught on. Apple and Google’s tech only work with apps developed by government health authorities. And almost no states have developed those apps. Marketplace’s Jack Stewart speaks with Ina Fried, chief technology correspondent for Axios.