Those horrifying events were in the past. It could never happen again. Even when Israel was at war in 1967 and again in 1973 I never really worried. (Later histories by Michael Oren and others have taught me otherwise.) Anti-Semitism was, for the most part anyway, a thing of the past, of concern only to the Anti-Defamation League and similar organizations. They could take care of the rare outbreaks.
How naive I was!