Staring at a black man in Charlottesville a year ago, Richard Preston took out his gun and fired. Now he, an imperial wizard of the Ku Klux Klan, is being stared at by a crowd of black people at the National Museum of African American History and Culture.
He walks past a long line of people waiting to pay their respects to murdered teenager Emmett Till.
There is a lone pew. The mood is somber and heavy. Like a never-ending memorial service or wake.
And there is the glass-topped casket, demanded...