A man wears a Kansas City Chiefs protective mask while waiting for a flyover of aircraft from nearby Whiteman Air Force base Tuesday, April 28, 2020, at the Liberty Memorial in Kansas City, Mo. The flyover included one B-2 Spirit stealth bomber, two A-10 Thunderbolt IIs and four T-38 Talons and flew over several metro hospitals as a tribute to healthcare workers fighting COVID-19. (AP Photo/Charlie Riedel)