Where we live (daughters place) and the nearby neighbors we will be fine. A few head of cattle, some chickens, a pond, deep and shallow wells (yes Virginia sulfur water is OK to drink) and a BIG propane tank. We will be OK including the plus I was a working Paramedic for many moons and wife is a RN. Guns we have but they do not play that big a role in our plans, the fact we have food & water plus good shelter in a relatively out of the way place is our plan.
