This was is favorite episode - whoch i happened to tape the first time it was broadcast. It's one i could listen to again and again and not get tired of it. It's an intriguing triangle of several forces: science, commercial interests, and fear of the unknown. Robert Dryden is great in the scenes where he makes clear where he stands. Fascinating questions are raised, and the listener is left to ponder the answers each time. The closing line is brilliant, and immensely visual. This one still fascinates me.