Relaxed mask rules: Rational or reckless?

The Centers for Disease Control and Prevention said Thursday that people who are fully vaccinated no longer need to wear masks in most indoors settings. This new guidance comes in response to promising evidence that not only do vaccines provide protection from severe cases of COVID-19, but they are also effective at preventing the vaccinated from passing the disease to others.

“The science is clear: If you are fully vaccinated, you are protected, and you can start doing the things that you stopped doing because of the pandemic,” the CDC...