The thing that makes conspiracy theories difficult to extract as
  well, is there governments, corporations, ANY public relations
  department _does lie_ sometimes.

  The father of modern Public Relations, Edward Bernays back in
  the 1920s encouraged a shift away from using the word Propaganda
  to disassociate the USA from Germany and instead use "Public
  Relations Department".

  Propaganda wasn't a bad word originally but it turned into one.

  So, they have a point. That's what makes it tough - they do have
  a point.

  Plus, we love puzzles. Very smart people often get involved in
  conspiracy theories. I've known more than a few Mensa+ level
  people who get wrapped up in them. [see Chomsky for modern
  example. Smart dude but sometimes... ]

  It makes logical perfect sense when put together just the right
  way.

  But... there's missing variables. There's ALWAYS missing
  variables that are outside of the Universe of their theories.

  Since they're inadmissible as evidence to their theory, they
  can't be used to refute it.