Despite the fact that everybody's first shocked reaction to the assassination of President Kennedy was that it must have been a right-wing plot, the New Orleans District Attorney's charges to that effect have been scorned by officialdom and ignored by the American public in general. But these authors conclude that when Garrison cried ""fanatic anti-Communist"" conspiracy he (probably) was not crying wolf. They run through the roster of Garrison ""witnesses,"" show the roles they played in the alleged conspiracy, and explain why Garrison feels that ""President Kennedy was killed for one reason; because he was working for a reconciliation with the U.S.S.R. and Castro's Cuba."" Oswald, Ruby, Clay Shaw and the others are implicated (as is the CIA) but ultra-right-wing anti-Castro Cubans--who felt that with the Bay of Pigs invasion Kennedy ""sold them out to the Communists""--are seen as central to the plot. The authors--Flammonde is a former producer of the ""Long John Nebel Show"" and Norden interviewed Garrison for Playboy late in 1967--rely heavily on newspaper accounts, The Warren Report, and the Playboy interview. Both free lance writers, they gather a welter of highly readable ""evidence"" to show that if Garrison should not necessarily be believed, he ought at least to be heard. If any book can perk up the public interest, this one will in an assertive if inconclusive fashion.