There are also fads in the type of topics that institutions set out to study. Now "Resilience" is going great, before the specter of a CBRN terrorist attack has long been at the center of discussions. Then comes Covid-19, then Russia invades Ukraine, and we realize that, in the face of the real facts of human history, often the words spoken have been spent in the wind and no effective preparations have been made. This short text focuses on the B of CBRN, trying to make it clear what an ugly beast it is and that Sars-Cov-2 was ultimately a domestic pet compared to other possible biological threats. We have to be prepared.