Indeed. The 2011 event was made worse by a worker using their hand to separate plutonium rods, which effectively placed a water barrier between them, making the

Indeed. The 2011 event was made worse by a worker using their hand to separate plutonium rods, which effectively placed a water barrier between them, making the likelihood of criticality higher. The link below describes the incident and how absurdly counterintuitive criticality safety can be. http://www.sciencemag.org/news/2017/06/near-disaster-federal-nuclear-weapons-laboratory-takes-hidden-toll-america-s-arsenal http://www.sciencemag.org/news/2017/06/near-disaster-federal...