“I understand the desire to project caution,” says Dr. Leana Wen, the former health commissioner of Baltimore, who now teaches public health policy at George Washington University. “But projecting hope is really important, too, as is showing the nation the president’s confidence in the power of the vaccines.”... In an email to Yahoo News, Dr. Jayanta Bhattacharya, a professor of medicine at Stanford University, wrote that “the new CDC guidance on what situations it deems safe to wear masks for the vaccinated and non-vaccinated is really confusing. So President Biden is defaulting to the position he deems most responsible and safe, which is to wear masks more or less everywhere.”... “We need to send the right message, and right now that message is, ‘Get your vaccine, and the future is bright,’” says Dr. Marty Makary, a Johns Hopkins oncologist. In an email to Yahoo News, Makary expressed concern that “the CDC guidance is feeding into a distorted public perception of risk and causing people to question our message on vaccine protection.”