Both were public health officials lying to citizens about the effectiveness of particular actions in protecting their own health. The Tuskegee Experiment direct

Both were public health officials lying to citizens about the effectiveness of particular actions in protecting their own health. The Tuskegee Experiment directly damaged the health of 458 people and killed 128 of them. The CDC lying about masks put the health of 330 million people at risk and killed...who knows? Maybe it saved more than it killed, but it did kill people. And that's the thing. The CDC didn't come out and say "we lied to you but the ends justified the means; killing some of you was worth saving more of you". They just tried to pretend it never happened, or alternatively that nobody could possibly have any idea that face masks could help you not infect your neighbors. Primum non nocere