William King wrote:
http://mediadecoder.blogs.nytimes.com/2009/06/24/editor-of-wired-apologizes-...
Chris Anderson, the author, summarized the situation in two words: "Mea culpa."
Somewhat cynical: they thought they could just cite, looked at the GFDL and thought "damn, doesn't work that way", and then just went ahead.
Charles