The web site hosting the Harper's article "Secrets by the Thousands" linked in "Patents considered evil" posts questionable ideas if you look at their root site. Also, linked from their version of "Secrets" is another article titled "The Great Patents Heist" that comes from The Barnes Review, a Holocaust-denying publication. While "Secrets" is behind a pay wall on the Harper's website (http://www.harpers.org/archive/1946/10/0032777), I'd suggest using a direct link to Harper's (or get permission from Harper's to post "Secrets" yourself) rather than use that site as a citation.