The plastic edge of the kiddie pool felt thin and flimsy under the weight of the moment. It was 1969. Pittsburgh was simmering. Beyond the walls of the television studio, public pools were being filled with cement or drained of water rather than allowed to hold people of different races.

Fred Rogers sat on a low chair, his trousers rolled up to his knees. His feet were submerged in the cool, clear water. He looked up at Officer Clemmons, a Black man in a police uniform, and made a simple request. "Would you like to join me?"

The tension in that invitation was enough to break the lens. The world was demanding a fight. It was demanding a debate or a protest line. But Clemmons sat down. They dipped their feet into the same small pool. And they even shared the same towel to dry their feet.