There’s no shortage of examples. Recall that in the pandemic’s earliest days, the CDC blocked doctors and labs from testing for the virus despite a suspicious upswing in people with symptoms consistent with COVID-19. The CDC’s own COVID-19 test, released in early February 2020, ended up being dangerously flawed. Weeks passed before the agency permitted private labs to start making better tests. In early April 2020, when the virus was killing 1,000 Americans every day, the CDC declared, “You do not need to wear a facemask.” The very next day, officials changed their mind — Americans needed to wear a “cloth face cover.” The CDC said this flip-flop was based on new “science” showing that patients could be infected and contagious for several days before having symptoms. Yet studies had determined that as early as February 2020. Critics have tried to pin all this confusion on former president Trump. But the CDC’s record since President Biden’s inauguration has not improved.