For centuries, secret-keeping has been a necessity in the Black community. Slaves hid children born with disabilities, to keep them from being killed. Thirsty for knowledge, they could not safely learn to read and write, so that was kept carefully hidden, as well. Continuing into the days of Jim Crow, more sophisticated secrets were kept, so that Blacks could socialize and enjoy each other's company without the threat of the Klan hunting them for...