The advertising-funded media (and politicians of both parties fearful of The MAGA in the upcoming mid-terms) relentlessly hammer everyone with the falsehoods that "it's over," "be done with it," "we'll all get it eventually anyway," "it's an endemic now," "I'm vaccinated so it's all good," etc.

"wore a mask during most of the sessions" and "flew to San Francisco airport" are just two examples of "not taking appropriate precautions." It's no mystery.