Susan:

In your post you stated " '...there is not yet any foolproof remedy for human error and a lack of luck.'" I feel compleled to respond that in my opinion there is a remedy,, regretably that remedy is death.

Pleae accepy my appology if I offend, but if the Urban dweller goes into a part of the world they know they shouldn't be in, during adverse conditions, I personaly say that is when the Darwin factor kicks in. We humans have services and people that directly block that "thinning" from happening by rushing out in the middle of the night, in a snow storm, to rescue the people who should have known better. Children, on the other hand, just don't know better. Children should be sought after and don't necesarly know when things are in over there head or when things have gone from "fun" to "life thretening"

I should add that I am one of those that rush out to help. Having done SAR in Alaska, Maine and Rescue in Mass, I was and will always bee one of those willing to help those that just don't think things through.