There are numerous ways our civilization might end. I said plenty in the past about real threats, either from heavens or from within the Earth or ourselves. It was the main theme in the second half of 2012, around the Mayan's doomsday date, and I contributed with several posts related to this, including Doomsday , Biodiversity and The Apocalypse Aftermath and in all those stories I was mainly focusing on Mother Nature and catastrophes we can do little or nothing about. It was either some wrath from the distant universe in the form of deadly gamma rays and supernovae implosions, or some judgment day originated from our own sun or asteroid impacts, or even the ultimate rage from our planet by some super volcanic or tectonic disaster. But I only timidly mentioned all those man-made events I referred to as 'other human stupidities', including nuclear holocaust and biological hazards. So perhaps now is the time to continue the thread and glimpse into two great stories behind ...