Today, the President will commemorate the hundreds of people brutally attacked on a bridge in Selma 50 years ago during a peaceful protest for racial equality. But just this week, a billboard was erected within sight of the historic location in memory of a Ku Klux Klan founder Nathan Bedford Forrest. It has prompted outrage in the Alabama city as many claim it demonstrates underlying racial tensions that linger half a century after the march. The sign, bearing a portrait of Forrest on horseback and a Confederate flag, stands at the foot of Edmund Pettus Bridge - which is named...