"Your inherited allotment of drug synapses is unique, and this is why some people are sensitive to drugs, some people insensitive, some people extremely sensitive. And one of the things about exploring consciousness with substances is you have to sort of learn what…

Ted Koppel hosts an 80-minute panel discussion airing immediately after the ABC TV-movie The Day After — Sagan's first major TV deployment of the 'nuclear winter' framing, alongside Kissinger, McNamara, Buckley, Wiesel, and Scowcroft.