What we have at the moment is a terrible error in this particular situation," he said.
An accident is a disastrous event caused by human error. Humans are far from perfect, and as we get older we tend to more mistakes. It would be interesting to learn the age of the dispatcher and also whether he was under domestic pressure for whatever reason. Nevertheless this was a tragedy, which only goes to show that however much we may try to be safe there is always risk in whatever we do.