Tragedy

The Gulf Coast is under threat from a huge and growing oil slick. Boston.com has some photographs.

IMO, the only approach to safety is to accept that accidents are inevitable. All you can do is reduce the probability of an accident and to mitigate the effects of accidents.

Any claim that "we've reduced the probability of accident to be so low that it will never happen" is simply arrogance.

PS: Risk mitigation has to consider the worst case scenario, especially if the worst case scenario is a huge catastrophe.