[WS:] My point exactly, which makes my analogy to a plane crash valid.
The pilots and Swiss air traffic controllers made a major blunder in 2002 which lead to a rare mid-air collision of two airliners. But that blunder says nothing about the safety of airline travel because its - well - a rare blunder, and exception not a "situation normal."
This is analogous to building a 3 meter wall in a place where 15 meter waves can be expected. A major blunder to be sure, and heads will likely roll for that in due time, but expecting that such major blunders are common borders on paranoia.
This is not to say that people do not make mistakes - they do and you can bet on it - but that is why we have organizations and their backup and safety systems in place - to safeguard against such mistakes. Such safeguards are not 100% effective - nothing is - but they have been working pretty in most situations.
Wojtek