"On Sept. 20, after a class discussion of the case for universal masking as defense against transmission of SARS-COV-2 (in which discussion she did not participate), a student took to Twitter to express her fury that Prof. Miller had brought up the randomized, controlled tests - all of those so far conducted on the subject - finding that masks and ventilators are ineffective at preventing such transmission, because the COVID-19 virions are too small for such expedients to block them."
