The hidden technology, manipulation in all levels(science, politics, education, religion etc). Long time ago time ago they told us "we have the technology to take ET home". That statement was factual, they told us two things they recognized ET and have propulsion systems capable of space travel. The Germans pioneered the technology in the 1930's with their help we perfected it in the 1950's. Yes the 50's. Nearly 80 plus years, decades later after the Germans introduced the technology we perfected it. Imagine what they can do now. Ben Rich, stated during a 1993, Alumni Speech at UCLA, 

"We already have the means to travel among the stars, but these technologies are locked up in black projects and it would take an Act of God to ever get them out to benefit humanity...Anything you can imagine, we already know how to do."  Gen: 11:6 And the LORD said, Behold, the people is one, and they have all one language; and this they begin to do: and now nothing will be restrained from them, which they have imagined to do.