Embedded Player In 1951, 16-year-old Barbara Johns led students in a rural Virginia county on an historic walkout to protest overcrowding at their all-black school. The resulting court case became part of the landmark Brown v. Board of Education ruling 50 years ago in which the Supreme Court declared segregation unconstitutional. NPR's Juan Williams has a two-part report on the legacy of events at Moton High School in Prince Edward County, Va. It's part of NPR's series on the 50th anniversary of the Brown ruling.