Here is another post of Randi Speaks. I do this because the Digg community has declared the JREF as a Digg Spammer site. sheesh. Here is snippet:
James Randi talks about one of the most influential scientists of all time; Carl Sagan. Randi and Sagan were well acquainted, and Sagan once said of Randi: "We may not always agree with Randi, but we ignore him at our peril." Watch this video to see what Randi has to say about Sagan.
Here is the full article and link to the JREF: Randi Speaks on Carl Sagan