Its always a good idea to get the full story before passing judgement, something I know is impossible in today's world of blogs and discussion boards. Here is a link to an interview with Edgar Mitchell that should set the record straight.

http://blog.blogtalkradio.com/2008/07/24/dr-edgar-mitchell-sets-the-record-straight/

Dr. Edgar Mitchell Sets Record Straight

Some quotes from the interview shows he was basing his claims on stories he heard from old-timers at Roswell, not first hand knowledge. And that he had his words twisted by the newspaper (Surprise!).

1) "LB: The interviews are quoted as saying that you say sources at NASA who had contact with aliens

EM: That is totally false."

2) "LB: One of these quotes said that whoever did describe these beings said they resembled “little people who look strange to us.”

EM: Well, we've all seen the pictures of the so-called aliens – “little grays.” I have no first-hand evidence that that's true, but I do accept the fact that those seem to be the prevalent story."

3) LB: So the interview has been a little misquoted. But you actually have information about the Roswell incident?

EM: Yes and my information comes from what I call “the old timers,” because I grew up in the Roswell area and when I went to the moon, some of the old timers from that period, some locals, and others military and intelligence people, who were under rather severe oaths to not reveal any of this and kind of wanted to get their conscience clear and off their chests before they passed on, selected me and said, independently – this wasn’t a group effort – independently that maybe I might be a safe person to tell their story to. And all of them confirmed, and what I’m saying is they confirmed the Roswell incident was a real incident and they in some way had some part in it that they wanted to talk about.