2010 marks the 50th anniversary of the publication of "Born Free" - a book, and then a film, that changed forever the way we think about wildlife. "Born Free" is the dramatic story of Joy and George Adamson becoming surrogate parents of an orphaned lion cub named Elsa and her eventual release back into the wild. What has happened to lions since this story? What has happened to the people featured in the film? What has "Born Free" taught us?