Today marks the third annual Informal Presentation on the Art of Dance, a dance event put on by the Dance Theatre of Harlem and the Dancing Through Barriers Ensemble. The two troupes converge each year in a most unconventional space: The State Supreme Court of Manhattan! Arthur Mitchell (himself a principal dancer with the New York City Ballet in the '50s and '60s) co-founded DTB after the assassination of Martin Luther King, Jr, and the......