Today I celebrated my 75th birthday with friends …, and shared with them this reflection … In a nutshell, I’m saying that I welcome the new responsibilities that accrue with age, and commit myself to trying to fulfill them. And now I want to make this commitment explicit, by telling you what I will try to do in the next five years. And maybe longer, but let’s just take things one lustrum (5-year period) at a time. (2016.4.3)

How is it that so many young men and women born and raised in secular, post-Christian, democratic societies in Western Europe (or the U.S.) acquire the passion to kill and die for Islam?