With the nation at war in the 1940s, twenty-two-year-old Jack Valenti flew fifty-one combat missions as the pilot of a B-25 attack bomber with the 12th Air Force based in Italy. In the 1960s, with the nation reeling from the assassination of a beloved president and becoming embroiled in a far different kind of war in Vietnam, he was in that fateful Dallas motorcade in 1963, flew back to Washington with the new president, and for three years worked...