U.S. House Capitol riot committee kicks off first hearing

U.S. Capitol Police sergeant Harry Dunn testifies during a U.S. House select committee hearing on the Jan. 6 Capitol riot in Washington, D.C., the United States, on July 27, 2021. A U.S. House panel dedicated to investigating the Jan. 6 Capitol riot kicked off its much-anticipated first hearing Tuesday featuring four police officers who defended the seat of the U.S. legislature during the violence. (Andrew Harnik/Pool via Xinhua)