over it and you start building a track file on that contact, it can escape you. most modern radars, when they start picking up something, they ll assign a track file to it. in some of these images there s evidence that the plane went up to sthing like 45,000 feet which is beyond the operating range of a 777. we know it can fly that high but can t provide enough oxygen for passengers on board which raises the question of hypoxia. a lot of people suggest a gruesome death. that s not necessarily so, though, or incapacitation. what happens through hypoxia. what happens is the blood starts to become deoxygenated. you get carbon dioxide buildup, and unless you get more oxygen in, you start getting tingling everybody experiences differently. common denominators are tinge nlg the outer extremities,