查核能安全時候從wikipedia看到wiki也在裡頭寫了Black Swan Event
來源是 Adam Piore (June 2011). Nuclear energy: Planning for the Black Swan, Scientific American, p. 32
文章前面在講新式reator：AP1000、EPR等等強調的passive safty 被動式安全
這個是defense in depth的點
A rare event – especially one that has never occurred – is difficult to foresee, expensive to plan for and easy to discount with statistics. Just because something is only supposed to happen every 10,000 years does not mean that it will not happen tomorrow. Over the typical 40-year life of a plant, assumptions can also change, as they did on September 11, 2001, in August 2005 when Hurricane Katrina struck, and in March, 2011, after Fukushima.
The list of potential black swan events is “damningly diverse":
Nuclear reactors and their spent-fuel pools could be targets for terrorists piloting hijacked planes. Reactors may be situated downstream from dams that, should they ever burst, could unleash massive floods. Some reactors are located close to earthquake faults or shorelines, a dangerous scenario like that which emerged at Three Mile Island and Fukushima – a catastrophic coolant failure, the overheating and melting of the radioactive fuel rods, and a release of radioactive material.
但還有重點一段 福島電廠原是設計耐8.2級地震，9級地震都還在其safty margin
reply to Roberto
notebook 142 我有讀過相似的報導也寫了心得
notebook 143 is still too technical for me now, so I skip it.