In part I of Donald Rumsfeld's Long March, Robert Morris uses Rumsfeld's career as a guide to both the moral and practical corruption of the U.S. military and the increasing moral blindness of our use of force in international affairs. This article is not just about the bastardry of a single individual, but the pervasive problems of America's violent 20th century realpolitik.
(h/t to This Modern World)
This article is another must-read. It ties very directly to Arthur Silber's Dominion Over the World series as well as Bob Altemeyer's The Authoritarians.
Morris tells us what happened, Altemeyer tells us why it happened, and Silber tells why it's so very wrong.