When I checked the front page of ScienceBlogs this morning, I noticed that Ed Brayton was listed as "The Must Read" entry of the day. So I read it. Sure enough, it is a must read.
In the entry, Ed comments on Michael Shermer's latest Skeptic column for Scientific American about the study on the way in which partisans process information, noting that as humans we are naturally predisposed to confirmation bias, but being aware of that fact gives us a way to escape our built-in prejudices by remembering to subject our own beliefs to scrutiny.
It sounds blatantly obvious, but we all need reminding from time to time.