CNN Sole Survivor January 3, 2015 03:30:00
You couldn't question anything. but i got up and i walked out. >> the ntsb is mandated by congress to find a cause of an accident. we're actually one of the last industrial nations that determine a single probable cause. >> when congress created us, one of the things that they asked us to do was to determine the probable cause. that's been a part of our statute for over 40 years. >> when you look at a complex accident like this, you can't look at one individual thing, you have to look at the interactions. once we can put that term pilot error, it makes us feel better that we found what went wr...