Bottom line: it will be impossible to use the protests for identification....https://twitter.com/ArashMarkazi/status/1269169419998990336 …
The German event happened before the era of masks. It *could* still spread outdoors but that's not established . We do however know that jailing and kettling will definitely spread (evidence of indoor risk is absolutely established) and tear gas makes respiratory illnesses worse.
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And mask wearing was far less than universal, both by protesters and law enforcement. I don’t think any economist would ignore the presence of confounders like the Vegas situation, but the press or casual observers certainly might.
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