Book excerpt: Influential assassination researcher Harold Weisberg revolves the third installment in his Whitewash series around the photographic evidence available to government officials investigating the death of John F. Kennedy. Given the materials and photographs available to the Warren Commission, Weisberg shows that in numerous cases the government either ignored the evidence it had in front of it or intentionally misrepresented evidence. Using the photographs themselves to show the inadequacies of the government’s research techniques, as well as the impossible conclusions at which the government arrived, Weisberg’s most damning argument is that the government twisted the evidence to make it fit preconceived theories and explanations for the assassination of the president. In the years since its original publication in 1974, the books in Weisberg’s Whitewash series have become classics of assassination literature and have established the author as one of the premier investigators and researchers in his field. Decades later, the shocking revelations painstakingly detailed in his work have lost none of their impact, and the information uncovered beneath the government’s whitewash is crucial to understanding the assassination of John F. Kennedy.