Sounds like your wife may be a little wiser than mine was, so use CAUTION!!! 
Sage advice that I will heed!
My wife's son spent a year in Iraq as a medic and returned 80% disabled. So I can empathize. He was 22 when he went over and he had to grow up a lot during that year. I think body recovery detail was probably the worst for him. Especially retrieving people he knew or sometimes his friends. I'm sure there were some horrific sights over there he'll never talk about. But, with his physical and mental scars, all we can do is love him and hug him as much as we can. Outwardly, he seems fine. He has an occasional headache. But only he and God know the extent of what he feels inside.
But, having said that, we all feel it is a wise course of action to be prepared in case things get bad. I remember after Katrina, when the pipelines were shut down and the gas stations were running out of gas, my wife (who is really the smart one around here) said, "This country is only one truckload away from starvation." So ever since, we've tried to look ahead and have some food and water tucked away. We have a pretty extensive first aid kit, and solar battery chargers, and that type of thing. I don't think we're doomsday preppers, be can make it for a couple of weeks if things were to disintegrate.
I read a book that changed my outlook on life called, "Alas Babylon". It is a fiction, maybe even science fiction, about a nuclear war with the Soviet Union. It was written in the 50s and is very politically incorrect. But the moral to the story, so to speak, is that if you can't eat it, if it doesn't keep you warm or dry, it is worthless. Think about living on a deserted island. Money, jewelry, fancy cars, etc., won't keep you alive. Cigarettes and coffee would be sorely missed by many, but you won't die from lack of it. Salt, on the other hand is vital for life, and you can't grow it, and if you don't stumble upon a deposit of it, or if you can't desalinate ocean water, you won't have any. People that live in urban settings will have a hard time growing or raising enough food to survive on. People that are able to feed themselves must be able to defend themselves.
OK, I've went off on a tangent here. But it's something to think about. Especially with the violence in the world and the potential for an Ebola epidemic.
::getting off of soapbox::
