A recent Superman comic book* has the hero saying, "I am renouncing my U.S. citizenship" because "truth, justice, and the American way — it's not enough anymore." Though not addressing Superman's statement, Stanford University professor and Hoover Institution senior fellow William Damon explains how such a vision could emerge today but not yesteryear. The explanation is found in his article "American Amnesia," in Defining Ideas (7/1/2011), based upon his most recent book, "Failing Liberty 101: How We Are Leaving Young Americans Unprepared for Citizenship in a Free Society."