MANY AMERICANS SENSE THAT THEY ARE PRESENTLY RELIVING WEIMAR GERMANY. AND WE KNOW WHAT FOLLOWED.

Timothy Snyder, Black Earth: The Holocaust as History and Warning (New YorkL Tim Duggan Books, 2015) ("An instructive account of the mass murder of the Jews of Europe must be planetary, because Hitler's thought was ecological, treating Jews as a wound of nature. Such a history must be colonial, since Hitler wanted wars of extermination in neighboring lands where Jews lived. It must be international, for Germans and others murdered Jews not in Germany but in other countries. It must be chronological, in that Hitler's rise to power in Germany, only one part of the story, was followed by the conquest of Austria, Czechoslovakia, and Poland, advances that reformulate the Final Solution. It must be political, in a specific sense, since the German destruction of neighboring states created zone where, especially in the occupied Soviet Union, techniques of annihilation could be invented. It must be multifocal, providing perspectives beyond those of the Nazis themselves, using sources from all groups, from Jews to non-Jews, throughout the zone of killing. This in not only a matter of justice, but of understanding. Such a reckoning must also be human, chronicling the attempt to survive as well as the attempt to murder, describing Jews as they sought to live as well as those few non-Jews who sought to help them, accepting the innate and irreducible complexity of individuals and and encounters." "A history of the Holocaust must be contemporary, permitting us to experience what remains from the epoch of Hitter in our minds and in out lives. Hitler's worldview did not bring about the Holocaust by itself, but its hidden coherence generated new sorts of destructive politics, and new knowledge of the human capacity for mass murder. The precise combination of ideology and circumstance of the year 1941 will not appear again, but something like it might. Part of the effort to understand the past is thus the effort needed to understand ourselves. The Holocaust is not only history, but warning." Id. at xii-xiii. Also, see Michael R. Marcus, "Hitler's Ecological Fantasies," NYT Book Review, Sunday, 9/6/2015.).