ONCE I SAW A NAVY FILM ABOUT EXPEDITIONS IN THE FROZEN arctic. You could be walking over a solid glacier. Suddenly the ice would heave and shatter. Some kind of unimaginable stresses in the floes. A whole new geography would be forced up. Massive escarpments where it had been flat. Huge ravines behind you. A new lake in front of you. The world all changed in a second. That's how I felt. I sat there rigid with shock on the counter between the fax machine and the computer terminal and felt like an Arctic guy whose whole world changes in a single step. They walked me through to the cold store in back to make a formal identification of his body. His face had been blown away by the gunshots and all his bones were broken but I recognized the star-shaped scar on his neck. He'd got it when we wer

