I think that article might not be entirely accurate. Every other report I've heard indicates they made a lean-to shelter out of tree limbs.

Here's an example:
http://www.cnn.com/2007/US/12/20/family.found/index.html

I also like the fact they were smart enough to remove socks and put their feet inside each others shirts to keep from getting frostbite.

I completely agree they could have had better training; you can always claim that though. My point is from a psychological perspective, they held together ALOT better than most of the people you end up reading about in the obituaries. They survived 72 hours in the cold, damp weather with relatively few injuries and zero fatalities. Not bad for a bunch of uneducated city-folk.
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