Has our vision of Dr. King's message been sanitized by the passing of time? We've all heard, "I have a dream." In a less-well known speech, King said, "There comes a time when a man must take the position that it is neither safe nor politic nor popular — but he must take it because it is right..."

Thirteen countries in the world ban HIV-positive visitors from entry, including Saudi Arabia, Russia, Sudan, Moldova... and the United States. We take a look at the ban and ask why that law has stayed on the books.