Remember, I am LOOKING for that video mentioned in this DUFU edition. It is quite simply AMAZING. Unfortunately I couldn't find it on the web. I would like to post it as an update to this DUFU edition.
I believe that exchange between Biden and Secretary of State George Shultz probably took place on July 23, 1986, if that helps. I didn't read this
news article but that was the day Shultz testified at a hearing of the Senate Foreign Relations Committee about U.S. policy on South Africa.