mcaleer it was one particular problem. the issues you were detecting were a multitude of safety concerns unlike the safety switch which came later which was focused in one particular area. >> it's all over the vehicle, michael. but the correction -- the correction is what you do to the process. anybody who builds cars creates problems. there are always problems that are created in the production of a car. but you have to have a process that corrects that before the vehicle leaves the corporation's hands. >> my interview with bill mcaleer doesn't stop there. what happened next when he went to sue gm and how he believes all the horrific crashes and deaths could have been prevented. >> if that had been corrected in '98, if we had done a thorough check of our of our procedures and found out how safety defects were getting through none of this would have happened. and it's pretty simple. mayo? corn dogs? you are so outta here! aah! [ female announcer ] the complete balanced nutrition of great-tasting ensure. 24 vitamins and min

i talked about that finding with former gm employee william mcaleer.early 36 years working for gm, a portion of which had him as the head of a corporate quality audit. in 2002 he warned the entire gm board of directors of safety defects in gm cars, concerns he says were not acted upon. here is more of the exclusive interview. my reading of the report without your area of expertise and knowledge of the subject matter, i'm just a lay person, when i take a look at it, but it seems there was one particular engineer who knew or had reason to know there was a problem, actually changed the design of a particular part but did so without changing the corresponding part number in an effort maybe to hide that which he had done. how are you ever going to be able to weed out that kind of a, for lack of better description, bad apple? >> i'm not sure we're dealing with a bad apple here. i think that what he did was he repaired the problem he had without admitting that it was a problem. and i actually believe the environment he was in required him to do that. and i do