I like this line;

c. Conspiracy on the large scale often suggested would be impossible to conceal in the United States, esp. since informants could expect to receive large royalties, etc. Note that Robert Kennedy, Attorney General at the time and John F. Kennedy's brother, would be the last man to overlook or conceal any conspiracy. And as one reviewer pointed out, Congressman Gerald R. Ford would hardly have held his tongue for the sake of the Democratic administration, and Senator Russell would have had every political interest in exposing any misdeeds on the part of Chief Justice Warren. A conspirator moreover would hardly choose a location for a shooting where so much depended on conditions beyond his control: the route, the speed of the cars, the moving target, the risk that the assassin would be discovered. A group of wealthy conspirators could have arranged much more secure conditions.
Do you not believe the government looks into all the 9-11 stories? I'm sure the same report exist. If you are being blamed for something wouldn't you investigate it? They were just looking into the conspiracies.