Re the Airliner hitting the Pentagon:
A recent video making the rounds on the internet show a MacDonnald F-4 Phantom Jet being run into a concrete barrier at 500+ miles per hour. The airplane is effectively "vaporized". Virtually the entire mass of the airplane is converted to energy. This is shown "frame by frame". Those familiar with the Pentagon know that it is constructed "hell for stout" and is easily the equivalent of the concrete wall used in the test. The explanation for no airliner being found lies not in conspiracy theories, but in the formula (E=mc squared).
I very much doubt that Lee Harvey Oswald was the lone gunman in the Kennedy Assination. His prime function appears to have been "patsy". Kennedy was about to bring the Vietnam debacle to a close and that would be very costly to the Military Industrial complex. His assination turned out to be very profitable for a great many people involved in military arms production.