I suppose none of what I'm saying matters. In a few years a search like this won't even be necessary. We have instruments now that can be mounted on the underside of an airplane. To find a man all you have to do is fly over the spot where you think he is, and the machine will register his body heat. Right now there aren't enough of those machines to go around. Most of them are in the war. But when we come home from there, well, a man on the run won't have hope. And a man like me, he won't be needed. This is the last of something. It's too bad. As much as I hate war, I fear the day when machines take the place of men. At least now a man can still get along on his talents.
David Morrell, First Blood
advancement, progress