Editorial: Governors easing restrictions at wrong time

When reports emerged that a new, potentially more contagious version of the coronavirus was circulating in Britain, Gov. Andrew Cuomo of New York implored major airlines to require anyone entering the state from another country to first submit a negative coronavirus test. Scientists still had much to learn about the variant, but Cuomo was following a principle that has become scripture among public health experts: To defeat the coronavirus, you must act quickly. You cannot wait for certainty to arrive.