We've reported on the tech that countries in Asia used to track the coronavirus: fever-detecting goggles, disinfecting drones, and location-tracking tools. Now, the U.S. is considering takes its own steps to use surveillance tech to stop the spread of the virus. Reporter Bob McMillan joins us to explain. Plus, Personal Tech Columnist Joanna Stern joins us with her work-from-home tech tip of the day. Have a question for Joanna, or want to share your own experience? Leave her a message at (314) 635-0388 or email her at joanna.stern@wsj.com. You may be featured on one of our podcasts. Kateri Jochum hosts. Learn more about your ad choices. Visit megaphone.fm/adchoices