I met Randolph Langenbach at the Natural Building Colloquium in New Mexico a few weeks ago, and was in the audience when this video was being recorded. Randolph has taken the original footage and enhanced it with many extra images, so that it is really better than it was the first time. I think the research he has done as an architect and historic preservationist that you will see in this video is important, ground breaking work. He recently returned from Nepal where he was being filmed for a NOVA documentary about earthquake resilient reconstruction in that country. I believe that the techniques presented here have much broader application with earthbag building and elsewhere.
See www.traditional-is-modern.net for more about this.