George Floyd's death and ensuing mass protests over police treatment of black Americans have sparked new calls to improve race relations within the U.S. military, as well. On Tuesday, the U.S. Air Force made history by confirming the first African American chief of a military service. Nick Schifrin reports and talks to retired Major General Dana Pittard and retired Brigadier General Remo Butler. PBS NewsHour is supported by - https://www.pbs.org/newshour/about/funders