personality personality. >> do you love your mother do you love your father do you abuse small animals. >> reporter: he says some airlines interview a pilot's friends to see if they have psychological or emotional issues. but government regulations are not as strict. the faa says pilots can't fly if they have bipolar disorder or similar problems. rules say pilots have to undergo a medical exam every year or six months. abend says those exams don't place an emphasis on psychological screening. lisa van susteren says that doesn't cut it. >> if the screening is merely adequate and they are lumping psychological screening in with medical screening, is it possible for the person to dupe the screener? >> it is absolutely possible. most psychological evaluations are simply checklists and a person will answer and the evaluator will look down to mark it on his paper, never looking to see what kind of body language maybe the person withdraws or does something that gives you a clue that there is some sort of stress or anxiety in answering the question.