I hear you, but you got to understand that people who have spoken about all this were thteatened, some killed (who wanted to give proof), and of course called crazy and discarded from society and made fun of. 

I had some wild experiences, and very quickly learned that I should never ever talk about it if I want to be consideres normal.

My point is that this hearing is a biggie, it opens the door for actual evidence to be finally disclosed. But, not sure how easy or fast it will happen. Not because they don't exist, but rather because we are still society that cherish wars, agression, cynism...