Imagine a world without cancer. Well, now we can. Just follow Trump’s advice. “If we stop testing right now, we’d have very few cases, if any.” And, of course, Trump believes that what we don’t know can’t hurt his reelection chances.
A policy on masks helps but it will not fully succeed unless it is enforced. There will always be some people who don’t think the rules apply to them and who are inconsiderate about spreading their germs to others.