A surprisingly engaging show on a topic whose interest does not always match its importance. Mr. Goldschmidt gives the impression of seeing transportation steadily and seeing it whole, from private automobiles to airlines to long-distance railways to urban mass transit. Mr. Buckley draws the discussion usefully to questions about the price mechanism and the way oil prices affect our relations with our allies. NG: "But there is a flip side to this ... and that is, we have a responsibility not to surprise our allies. We are asking, for example, from the Japanese a pretty severe price for their partnership with us in terms of the Middle East. Their dependence on oil is much greater than ours. We get half of ours here. They get all of theirs someplace else than at home."