One of the reasons JFK was killed is because he blew the whistle on secret societies.

The dangers of excessive and unwarranted concealment of pertinent facts, far outweigh the dangers that are cited to justify them. There is a very grave danger than an announced need for an increased need for security, will be seized upon by those anxious to expand it’s meaning to the very limits of censorship and concealment. That I do not tend to permit, so long as it’s in my control – JFK

Source: Collective Evolution