So I now would like you to put your seat belts on and put your hats on .

SANTIAGO Fasten your seat belts, because it should be a bumpy ride, the captain warned from the cockpit. We were about to enter Argentine airspace.

And what I'd like to do is take you up to the canopy, not by putting all of you into ropes and harnesses, but rather showing you a very short clip from a National Geographic film called Heroes of the High Frontier.