To recap what by now is a familiar story: the Washington Post ran an article suggesting that Koch Industries would be the principal beneficiary of the Keystone Pipeline by virtue of its minor leasehold interest in Canadian tar sands-a complete fiction. I took the article apart here and here, pointing out, among many other things, that Keystone would actually be damaging to Koch s economic interests.

I wrote here about MSNBC s campaign to tie the Koch brothers to George Zimmerman s shooting of Trayvon Martin. That effort was, it is fair to say, insane, but it apparently inspired one or more liberals to take MSNBC s theories a step farther. Someone wrote - I think it was on Facebook - that Koch Industries had paid for Zimmerman's legal defense and/or put up his bail money. Other liberals happily repeated the claim, to the point where Snopes deemed it a rumor worth addressing.