A letter to the editor in Scientific American (April 2015) questioned Michael Shermer's derogatory use of the term "conspiracy theory" with regards to people questioning the official story of 9/11.  It pointed out that there are at least two 9/11 conspiracy theories and Dr. Shermer espouses one of them.  In the Letters section of the magazine Shermer has the last word, saying in effect that he has debunked the other conspiracy theory.  Below is a response I sent to the editors(editors@sciam.com) when I was auto-Logged out after submitting a comment to the Letters section.

The January edition of Scientific American magazine includes a new column by Michael Shermer. In it he gives his theory on how conspiracy theorists delude themselves and how to effectively respond to them. It makes for interesting reading. The comments are also fun.

www.scientificamerican.com/article.cfm?id=the-minds-compartments-create-conflicting-beliefs

Anthony J. Hall and Joshua Blakeney challenge Michael Shermer about his 9/11 Denialism at the University of Lethbridge, Alberta, Canada.
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http://www.youtube.com/watch?v=lGXm__kqFzQ
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From: Josh Blakeney [mailto:josh.vivelarevolucion@gmail.com]
Sent: Friday, September 24, 2010 10:29 PM
Subject: YOU TUBE VIDEO: Anthony J. Hall and Joshua Blakeney Confront Prof. Michael Shermer on his 9/11 Denialism

Dear Friends and Comrades,

Note: Yesterday evening, 03/12/07, I ordered the previous issue of Skeptic magazine wherein the “9/11 conspiracies" are covered at length:

https://www.skeptic.com/Merchant2/merchant.mvc?&Screen=PROD&Store_Code=SS&Product_Code=magv12n4&Category_Code=BIE

I was not able to find this issue on any of the newsstands in my area. And I have been told by Skeptic magazine that there is no electronic version of their magazine. So to get my copy in just a few days, I have purchased the fastest shipping available for my order. As soon as I get it, I'll post it for everyone to read. :)

Source: http://www.elpasotimes.com/ci_5410504

Conspiracy theories: the rumors are out there

By Diana Washington Valdez / El Paso Times

El Paso Times

Article Launched: 03/11/2007 12:20:13 AM MST

Forum on conspiracy theories at: http://dev.elpasotimes.com/yabb/YaBB.pl?num=1173652834/0#0

El Pasoans and other readers around the world recently chuckled over a story about an alleged crop circle in the Upper Valley that turned out to be the work of El Paso artist Michael Alford.