Martin Gardner takes on Oprah before his final departure

Somebody had to do it.

Oprah Winfrey: Bright (but Gullible) Billionaire by Martin Gardner
Skeptical Inquiry, Volume 34.2, March / April 2010.
http://www.csicop.org/si/show/oprah_winfrey_bright_but_gullible_billionaire/

I think he was too kind.