The information 'they' do not want us to know is nothing like that.
In fact I have heard information from only one source to explain this dis info.
Wernher von Braun headed up the US saucer program so he knows UFOs are not
from an alien race and to be used as a security issue as all governments need to
stay alive. This is so minor that security issues can be hatched without using
Teslaship the Von Braun built. The existence must be hidden and so the continued
talk of UFOs and aliens and no Tesla science for the masses.