Good Review of the Events of Last 30 Years Leading to Nuclear Threat

First time I've watched the Tulsi Gabbard Show. She's a good host, raises important points, and is a good listener.  I can imagine she'll do well in this role.  Though I could be wrong, I don't think politics suits her even though she has the bonafides for high office.  Jeffrey Sachs, a Keynesian economist, and Director of the Center for Sustainable Development at Columbia University and President of the UN Sustainable Development Solutions Network, who comes on at the 22:30 mark, is very good.  He said he played an advisor for the U.S. back in the days of Gorbachev.