One of our readings in Church last Sunday was about Stepehn --- the first Christian (after Christ) killed for his faith.
One of the Jews looking on (if not participating) in the stoning was a young fellow named Saul.
People change.
Actually, I think Ratzinger has nothing to be ashamed of in his youthful activities. But at the same time, it's not inspiring either.
oops - great minds think alike!