Well when the person who ultimate trust is placed in violates that trust it isn't something many consider there any viable counters too. GermanWings suffered a

Well when the person who ultimate trust is placed in violates that trust it isn't something many consider there any viable counters too. GermanWings suffered a loss from what likely was a similar reason, the difference being that this pilot didn't send the plane into the sea. I am not sure there is a viable means to guard against suicidal pilots except to speed up the acceptance of full automation