I will throw my two cents in...gerago is right on the money. Some years ago, someone did approach KAL flight admin about their misgivings about devon doll, billy freely ( as gerago calls them ), ricky johsi but the Koreans brushed him off. ricky somehow knew about this, hit the panic button and bailed out. The others knew the Koreans too well about not losing face and stayed put, reaping another few bonus years of bumper salaries before they were terminated for other reasons. There are many more but they have mates willing to testify on their behalf lending doubts which help the Koreans in not " losing face ".