Books Health & Safety The Delta Variant Forces U.S. Automakers To Revisit Mask Mandates 8:24am August 04, 2021 by Camila Domonoske Books Health Share URL copied to clipboard! Copyright 2021 NPR. To see more, visit https://www.npr.org. 300x250 Ad More Morning Edition Arts There's an upside to cold, snowless New England days — great skating World News Former Israeli ambassador to the U.S. discusses Israel-Hamas ceasefire by Michel Martin 300x250 Ad Support quality journalism, like the story above, with your gift right now. Donate