Gen. Charles Q. Brown, Jr. is Chief of Staff, U.S. Air Force and the first Black officer to lead a branch of the military. He speaks with Christiane from the Pentagon. "Stranger Things" actor David Harbour speaks about fame, mental health, and what’s next for him. Activist Helen Zia discusses the recent rise in anti-Asian hate crime and why the murder of Vincent Chin in 1982 still matters today.