I've given you plenty of links through which to dig out the quality of information you demand.
I've been there and done that thousands of times over.
It's OK with me if you wish to remain in the dark on the topic.
Gee thanks. Glad you "enlightened" me with your message board, videotape of a press conference, and an undigested file of government-released documents. Maybe you could shortcut it by pointing me to the piece of alien hardware, or alien DNA, or something similarly tangible to illustrate the reality of all this.