A very important point: Peter Gleick's professionally-crafted "confession" did NOT deny (or confirm) authorship of the faked memo

Fakegate: Fooled Again - WendyMcElroy.com

In case you hadn't heard, the person who obtained documents from the Heartland Institute by pretext has confessed: Dr. Peter Gleick. And I have to hand it to him: for the second time in two weeks he has bamboozled the New York Times:

Dr. Gleick denied authorship of the most explosive of the documents, a supposed strategy paper that laid out the institute’s efforts to raise money to question climate change and get schools to adjust their science curricula to include alternative theories of global warming.

Actually, he did no such thing. His carefully crafted confession
1. Did not state that the "2012 Heartland Climate Strategy" (the faked memo) was the anonymous document he received in the mail, and
2. Did not deny (or confirm) authorship of the faked memo.

Consider this hypothetical scenario: someone mails Gleick a copy of Heartland's 2012 Fundraising Plan. Gleick emails Heartland, and through his pretext obtains email copies of this and seven other documents. These not being spicy enough, Gleick "sexes up" the dossier by writing the "2012 Heartland Climate Strategy" memo (with his own linguistic style). He then sends the package out to climate blogs.

That is all perfectly consistent with what he has admitted...
Now, it's possible that the NYT's interpretation (and my initial assumption) is correct, and that Gleick did receive the faked memo in the mail. But Gleick has carefully avoided saying that. One must wonder, why?