I got the Randi story from John Riggs and (I'm not positive I could have it confused in my mind, but) I think it was Richard Webster who likewise commented on it; it's been quite the chat of late in certain circles along with Swiss proving to the world that he's an ass during a Radio spot.
Randi along with most other's of his ilk, cannot explain away Astrology when it comes to the many variables involved with proper chart development and influences. When asked about Trines, Squares and other factors he got lost and simply repeated "It doesn't matter, it's all Cold Reading". . . Derren Brown in the UK is known to screen people coming in for show tapings so he doesn't have people who are educated in Psi practice (I'm not talking storefront hustlers, mind you). It's actually disgusting knowing how much creative deck stacking skeptics do and justify when it comes to this sort of thing. It's been done for decades but only recently coming into public notice. . . mainly because the common person out there is tired of the abuse from either side; especially given the fact that the bulk of the world BELIEVES in something divine and beyond what we are or think we are.