The yellow caution lights are flashing urgently as the fall arrives, with danger signs everywhere that COVID-19 and its deadly variants may be ready to return to sicken and kill thousands of Americans. We’ve written this before, but it bears repeating: We may think we are done with COVID, but the virus is far from being done with us. The New York Times reported last week: “As we enter our third pandemic holiday season, some doctors are fearing a seasonal surge in COVID. In Europe — which many experts consider a bellwether for COVID cases in the U.S. — cases are starting to mount, prompting the European Centre for Disease Prevention and Control and the World Health Organization to warn that a new wave of infections could be starting.”