The historian Joseph Persico wrote that "several of the much-publicized revelations the book, however, hardly qualify as such. For instance, the authors tell how the K.G.B. forged a letter from Lee Harvey Oswald to E. Howard Hunt, the former C.I.A. officer and later Watergate conspirator, in order to implicate the C.I.A. in the Kennedy assassination. Actually, this story surfaced in Henry Hurt's "Reasonable Doubt", written 13 years ago. Similarly, the story that the K.G.B. considered schemes for breaking the legs of the ballet dancer Rudolf Nureyev for defecting to the West was first reported in a book written six years ago." And he added that "it does seem odd that a key K.G.B. archivist never had access to a copying machine, but had to copy thousands of pages in longhand. Still, the overall impact of this volume is convincing, though none of the material will send historians scurrying to rewrite their books."