BBC: America's Hidden History

It’s more than 150 years since the end of the American Civil War. But the replacement of a monument dedicated to the Confederate Commander Robert E Lee with a statue of black icon Henrietta Lacks has proved an emotive issue in Roanoke, Virginia.

In a region steeped in the history and trauma of that war, the unveiling of a new memorial has shone a spotlight on the hidden histories of the United States. As Elizabeth Gabriel reports for Assignment, how we remember the past remains a divisive issue.