It isn't a question whether King was a saint or Satan, but that he had very real and obvious ties to a movement dedicated then and now to the overthrow of the government of the United States of America.
While many people seem to think this is ok and should be dismissed with a wink, (the "I myself favor a middle ground" types) I feel it is an important part of his legacy and should be known by his supporters as well as his detractors. He was a communist supporter and useful to the communist movement.
I have posted King's anti-Marxist comments in Stride for Freedom 1001 imes. Would you like me to do it again? The King bashers seem to never read it. Perhaps you haven't had a chance to see them yet.