 In 2019, Mavis Staples reflected on the Staples singer's role in the civil rights movement and on her long career. This is supposed to be taken care of by now. I shouldn't have to be singing protest songs and Freedom Highway and, you know, but I love it. We revisit that session with Mavis Staples to celebrate her 85th birthday next time on an Encore World Cafe. World Cafe, tonight at 9 on Delaware Public Media.