On Monday, the president, health secretary Robert F. Kennedy Jr., Centers for Medicare and Medicaid Studies Administrator Mehmet Oz, and other top officials at the NIH and FDA presented their promised conclusions regarding the cause and treatment of autism.

As I watched the top science and health officials of our nation flank the president, I was worried that given Kennedy’s well-documented hatred of vaccines, things might not go well. I was right to worry. Things went as badly as they possibly could have gone. The big autism reveal was a total disaster.

The announcement on autism was the saddest display of a lack of evidence, rumors, recycled old myths, lousy advice, outright lies, and dangerous recommendations by anyone in authority in the world claiming to know anything about science

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