Paul,,,,if you have a good shelter and supply's and a radiation detector you can stay in the shelter a couple months poke your head out and check the levels do this until the levels have dropped to a safe level,,,,,,,all it takes is lots of supply's and a level head,,,as long as you don't get cabin fever you can survive and live a good life,,,,there may not be many people around but you will still be thereall out nuclear war is the one thing I don't prep for as I don't believe it is surviveable any way, and who wants to die a slow death of radiation poisoning? not me.