premise: The biography itself , which uses unpublished diaries and untapped Cuban government archives , is praised for having done a masterly job in evoking Che 's complex character , in separating the man from the myth ( Peter Canby , the New York Times Book Review ) . The Weekly Standard 's Stephen Schwartz calls it tainted for having received official support from the Castro regime and for abetting a Che revival .
hypothesis: The biography uses Cuban government srchives and shows Che 's complexities , although it has been called tainted by Schwartz .