Mistakes were made (but not by me) by Tavris & Aronson

At some point we all make a bad decision, do something that harms another person, or cling to an outdated belief.  When we do, we strive to reduce the cognitive dissonance that results from feeling that we, who are smart, moral, and right, just did something that was dumb, immoral, or wrong. By Carol Tavris and Elliot Aronson.
http://www.mistakesweremadebutnotbyme.com/