Fauci changes what he says every 2 days. If you know anything about science (little s, the scientific method) not Science (big S, your humanist quasi religion,) you know that's not how it works. It doesn't go: 'no masks, masks make it worse' to 'homemade masks that can't stop large particles can some how stop tiny micro viruses' to 'masks are only necessary til you get the vaccine' to 'masks til 2022 regardless of vaccine' to 'double masks forever cause of the Brazilian version of covid.'
If he can't keep his story straight: it ain't science. Period. So he's an ignoramus or a lying sack of farts. Or both.