ok, so heres as idea, what if a terrorist came and shot a large emp into the atmosphere, and managed to knock out all electricity in the world, this may be possible, the 2003 incident when almost all of the north-east of America was knocked out for days was only cause by a simple tree leaning on a telephone wire, so it may not be too hard, would the modern american be able to survive in the technology dependant world we live in?