Obviously changed times

Tonight I was watching "That's Entertainment," which is a fairly interesting overview of MGM in its heyday.  Considering Disney's view of "Song of the South," one thing that I was surprised hadn't been edited out since the movie's premiere was a clip of Andy Rooney and Judy Garland in blackface.  While I wouldn't condone making a modern film with blackface, I do think it is important to remember and discuss why it may have been popular at one point in time.  I don't think that it is possible to deal with racism by ignoring and erasing these older representations, though they tend to be uncomfortable, so most would prefer they just not exist, which is very easy in this day and age.