>> he went to canada and spent the entire time in very confined spaces. let's talk about going under water. this was something that made you a little bit nervous. >> it did. little would be a gross understatement. >> did you think about saying no? >> i think at that point -- i've never said no. i've done a dozen wars, tremendous stores, everything i can think of. i normally am not claustrophobic. i've done summaries on it. but i got into this thing. three seconds later, i literally almost dove out of the hatch, gasping for air. there's all the engineers and camera people and everybody who's worked so hard to set it up to go live and they're all looking at me. and they're all going, he's not going to be able to do it. i'm looking back at them going, that's all right, give me a few seconds. mentally, i'm saying, i'm not going to be able to do this. so it was a lot of mind over matter. i still found it fascinating and i think it was the geeky part of me that so much wanted to do