U.S. death toll could reach 300,000 by December

U.S. death toll could reach 300,000 by December, but 70,000 lives could be saved by consistent mask-wearing, MLB tightens rules: on planes and buses personnel must wear surgical or N95 masks, no cloth masks allowed, Trump claims "other countries don't report real numbers" amid growing criticism over U.S. response, lack of testing

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