Gordon,

You mention that ...."Errors in the medical system have given rise to the saying "doctors bury their mistakes"........"  These doctors, when shown in a court of law to have done so, are subject to multi-million dollar damage awards/assessments against them.  We are all aware of routine reports of such awards.   You, "....having the deepest sympathy...." for these victims, I assume would approve of similar civil liability for federal polygraph examiners (and others) who have ruined the careers and lives of applicants and employees through polygraph screening, yes?? :)