After watching the Foxnews video on the link website, where on earth does Mr Forstchen get the idea that the USA would be taken back 300-400 years considering electricity generation hasn't been in widespread use since the the early 1900s which was a good 60 years after the invention of the electric filament light bulb back in 1835 by James Bowman Lindsay.

Some expert.

Apperently 90% of all Americans could be dead after the attack according to Mr Forstchen, what he failed to mention was that the other 10% just went to bed early and started to learn the piano.