(Steve Perez | Detroit News via AP, File) In this June 16, 2015 photo, Ford Foundation President Darren Walker attends a reception at the Charles H. Wright Museum in Detroit. “On balance, I am very hopeful, and I’m very optimistic,” Walker told New York Times writer Nicholas Kristof. “What we’re seeing today is a sort of national convulsion over the recognition that racism in America is real and it’s not a figment of the imagination of Black people in this country.”