The emhasis here is on personal self reliance.In wilderness or marine environments the cultural constructs that provide order and comfort are not present,at least not in our modern society.However the skills presented here represent knowledge that goes back to when the natural world was our true home.As for relying on social services in a major catastrophy-don't.When I served in the Coast Guard,there were times all I could do was keep my own crew alive.As to our various mass means of self destruction,both rapid and slow?Get involved.I suggest IF YOU LOVE THIS PLANET by Doctor Helen Caldicott.As to a knife vs. a warhead?When Germany defeated France overzealous SS stormed several embassies.They were repelled by only one.The Swiss ambassador personally drove them from the grounds with-a SAK!<br><br>