The C.D.C. guidelines are essentially implying that the risk that the vaccinated will transmit the virus to others, including their unvaccinated children, is so vanishingly low that it is not worth worrying about. But if that’s their position, they should state it clearly and explain it, not just say that “fully vaccinated people have a reduced risk of transmitting” the virus. And is the expectation that the unvaccinated will all simply go with the guidance and stay masked? That does not fit with what we’ve observed in this country over the past year, especially with the ongoing polarization over these questions. Finally, what happens to those who work indoors all day? At a minimum, there should have been guidance on what the immunocompromised should do to protect themselves while in workplaces where neither masking nor social distancing is enforced. The C.D.C. still recommends that only health care workers wear respirators like N95s.