World events and changes happen all the time. It is also wise to consider worstcase
scenarios, however unlikely they may seem – many organisations have suffered
setbacks, or even foundered, because they didn’t consider such events (eg the BP oil
disaster in the Gulf of Mexico, the effect of the volcanic ash from the Icelandic volcano
on the airline industry, or the earthquake followed by a tsunami in Japan and its effect
on TEPCO’s nuclear power stations and the country’s nuclear power strategy).