An inside look at Ken Burns' latest film 'Muhammad Ali'

Ken Burns' latest four-part documentary "Muhammad Ali" will premiere Sunday on PBS for four nights. Jeffrey Brown visited Burns at his studio for a behind-the-scenes look at how he makes his films, and the larger context and conflicts in telling America's story in a time of racial reckoning. This report is part of our arts and culture series, "CANVAS." PBS NewsHour is supported by - https://www.pbs.org/newshour/about/funders