In two interviews, Dr. Molina did not back away from the conclusions of the paper. “We show in the paper itself that we know things are complicated, we know that there’s social distancing, we know that it’s sometimes perfect, sometimes not,” he said. But the language he and his colleagues used was “perhaps too strong,” Dr. Molina said. “Let me be clear: I think masks are an important intervention,” said Bill Hanage, one of the signatories and an epidemiologist at the Harvard T.H. Several dismayed scientists on Twitter swiftly denounced it.

Source: New York Times June 18, 2020 20:12 UTC