I have been following a website http://www.generationaldynamics.com/ww2010.htm
which seems to point towards a couple of very nasty possible outcomes.
As most of us are preparing for a variety of unknown cases;natural and man made, knowing the range of possible outcomes is quite useful.
It would be interesting to seem how many forum members consider the most probable "class" of survival event;
1) unexpected isolation in wilderness.
2) Natural disaster (Earth Quake,Hurricane etc).
3) Biological (non-terrorist,pandemic)
4) Energy related or economic breakdown.
5) War or Terrorist Act.

I personally can't seem to narrow it down, they all seem equally likely.