Thank you for reading and responding, Yettie One, and I'm glad this got you thinking. I'm not certain if the Doomsday Preppers have it right, but I do know if something like this were to happen then we'd have to adapt to a more primitive lifestyle. I'm not convinced there is enough wild game to support the current population, since we've become used to dining on domestic animals, but it would be something we'd need to do again. However, I know there are enough guns and ammunition in the current population that would account for a great deal of killing.