Using smartphones to track coronavirus: How does it work?

What if you could fight the spread of COVID-19 with your smartphone? Apple and Google are working on tracing software designed to tell people when they've come in contact with someone who has the virus. A team from Massachusetts Institute of Technology announced last week that it's developing a system based on Bluetooth. So what would a system like this look like, and how it would work? Dr. Karl Morris, associate professor of computer science at Temple University joins KYW In Depth to explain what contact tracing is, how it could work in the United States, how developers are addressing privacy concerns, and if it's possible to fool the system. See omnystudio.com/policies/listener for privacy information.