Mr. Buckley describes his guest as "the last of the great intellectual New Dealers"; his public career had begun at the Paris Peace Conference, and during the New Deal itself he had, among other things, drafted the Securities and Exchange Act. His newest book, Power, was, as WFB puts it, "an attempt to ... decoct from human experience some imperishable laws explaining and indeed governing the uses of power." Serious political theory and lively exchanges-with one of the most telling bits of humor being unintentional, apropos of the Berle Law ("that wherever there is chaos it will always be occupied by power"): WFB: "What about Colombia, for instance?" AB: "It is interesting to note, since ... I crossed the picket line at Columbia myself." WFB: "No, no, I meant the country." Many Firing Line guests speak from earned authority, but here is Mr. Berle explaining his support of Lyndon Johnson's invasion of the Dominican Republic: "It just happens that the Dominican Republic is a republic I know very, very well indeed. I ... drew up the land law for it, in 1924 ..."