I expected that authors Mel Ayton and David Von Pein would add nothing to our understanding of the assassination of President Kennedy, and that is precisely what they did. I expected they would regurgitate the same tired old arguments and trot out the usual roster of long-discredited witnesses, and they did just that. And I expected that they would pontificate on the evils of "conspiracy theorists" at every available opportunity and, lo and behold!, they did, writes Martin Hay.