the war in elsalvador, so many hundreds of thousands fled that war. we were supporting this very conservative right wing basically military dictatorship all those years until it was finally peace accord was achieved. same thing in nicaragua. we invaded that country how many times and controlled their governments, controlled their economy. so all of the immigrants that are in the country from those countries, whose children came with them and tiny ones and some have been born here probably would not be here in such numbers if it hadn't been for our involvement in their countries in this hemisphere. we are looking at what we have brought. this horrible catastrophe going on in houston, the largest, one of the largest immigrant populations in houston is vietnamese. over 250,000 that came into united states, people that most of which we abandoned when we left vietnam. incidentally, that series -- >> coming to pbs in a matter of days. >> we just saw all episodes. >> you're ahead of me. what did you make of it? >> it is so powerful. it is so painful. you jus