something called confirmation bias. that means that the pilot believes they see the right airport and because of that belief, they ignore all other information that suggests otherwise. also, there's the failure to use navigation equipment that is right there. they also fail to cross-check what they see with their eyes, that cross-checking that with the equipment. but in the grand scheme of things the faa said the number of times this sort of things happened, very minuscule. they sell us this. in the past ten years, six commercial aircraft landed at the wrong airport and there were no injuries or damage to the aircraft during more than 100 million commercial operations. so small sample here. still, though, the consequences could really be deadly, could be catastrophic. they take it very serious. >> i'm sure they do. rene, thanks very much. like a ghost town in the middle of the olympics. when it comes to good nutrition...i'm no expert.