Judah writes:

The accidents only prove that human beings don't always do what they can.
Perhaps they encounter situations that are beyond their control and/or
capability, perhaps they make mistakes, or perhaps they are arrogant cowboys
and decide they can do what they want.

It is also both possible and probable that the tests given to
prospective pilots are insufficiently accurate in predicting the
ability of a pilot to handle real-world situations.

--
Transpose mxsmanic and gmail to reach me by e-mail.