PBS has produced a wonderful documentary based on Douglas Blackmon's groundbreaking book, Slavery By Another Name.
The story reveals the unspoken history of "neo-slavery" in America -- a phenomenon that lasted until around World War II. African Americans by the thousands were rounded up using ridiculous Jim Crow laws against such things as "vagrancy" and sold into slavery -- hidden mines and factories dotting the South.
Check your DVR and local listings or watch it online here.