Thanks, Ron for asking, and John for responding about my first book, JAPANESE RADICALS REVISITED (Berkeley:
U. of California Press, 1973). John's memory is excellent both about Apter's book and mine. I used the late Kazuko Tsurumi's data on a sample of 1960 activists to survey and interview them 10 years later and found that the myth that all former activists convert and become conservatives who join big companies was a myth. The latter happened to those who weren't really Zengakuren radicals but only were mobilized intermittently because of the 1960 Treaty crisis. The hardcore Zengakuren activists generally went into publishing, academia, journalism etc and generally continued their left-wing beliefs except without going to demonstrations. A few stayed in the movement even as adults.
Best regards,
Ellis
Ellis S. Krauss