This little QR code is a lot more powerful than it looks. It helps collect data about your travel history, health status and more -- and China's using it to track citizens and stop those infected with ...

Life in China is dictated by QR codes. Entering a shopping mall, park, or your office building now requires generating a green QR code using an app on your smartphone. Chinese residents have had to ...

Qi Chen does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their ...

Why is Christian Science in our name? Our name is about honesty. The Monitor is owned by The First Church of Christ, Scientist, and we’ve always been transparent about that. The church publishes the ...