FILE - In this Oct. 16, 1968, file photo, extending gloved hands skyward in protest, U.S. athletes Tommie Smith, center, and John Carlos stare downward during the national anthem after Smith received the gold and Carlos the bronze in the men's 200 meters at the Summer Olympics in Mexico City. Australian silver medalist Peter Norman is at left. In a major shift in policy, the U.S. Olympic and Paralympic Committee committed to not sanction athletes who use their platform for social demonstrations. The USOPC stance sets up the possibility for conflict and confusion at the Tokyo Games, where the IOC will be in charge. (AP Photo/File)

FILE - In this Sunday, May 21, 2017, file photo, Gwen Berry, of the United States, competes in the women's hammer throw at the Golden Grand Prix track and field event in Kawasaki, Japan. Gestures made at the Pan-Am Games in 2019 by Berry and fencer Race Imboden rekindled a contentious debate about the IOC's Rule 50. In a major shift in policy, the U.S. Olympic and Paralympic Committee has since committed to not sanction athletes who use their platform for social demonstrations. (AP Photo/Shizuo Kambayashi, File)