I've read WHO's most recent guidelines. They do not state they don't work for the US’s situation. They may not have a purpose if you're outside and more than 6 feet away and not in a crowd. Nor is there reason to recommend them if you don't have access. Fauci has clarified his March remarks, part of which included him saying masks were not needed for the public because there aren't enough to go around Do you not seem him in a mask frequently? If you think the world is flat or we didn't land on the moon, go without the mask. It's just sad you'll be part of the problem that's killing thousands, costing thousands of jobs, and costing us trillions of dollars.