KOA's Rosen hosted author who claimed that liberal thinking "in some cases" is, in Rosen's term, a "clinical disorder" Research ››› February 21, 2008 5:12 PM EST ››› MEDIA MATTERS STAFF ? Short Link copy link We've changed our commenting system to Disqus. Instructions for signing up and claiming your comment history are located here. Updated rules for commenting are here. View the discussion thread.