Masks Don't Work Against the Batflu

As has been fairly obvious more-or-less all along.

linky

[Alright, fallibilistic addendum in a cool hour: though I've lost my chill about all this sort of thing, of course the above could be wrong, wait and see, blah blah blah. But the efficacy of masks has always seemed to be propped up by a kind of authoritarian inclination among some public health types esp. at CDC.]