Health Officials' About-Face on Masks

​www.wired.com/story/how-masks-went-from-dont-wear-to-must-have/?bxid=5cec25883f92a45b30ea634a&cndid=57005075&esrc=AUTO_PRINT&source=EDT_WIR_NEWSLETTER_0_DAILY_ZZ&utm_brand=wired&utm_campaign=aud-dev&utm_mailing=WIR_Daily_070520&utm_medium=email&utm_source=nl&utm_term=list1_p1

(Think of this as the detailed reason I require masks currently for in-car training)