Emp attacks are fiction."
The possibility of an EMP attack is just that. A possibility. Now, if you are saying that the EMP effect is fiction, then you are either incredibly ignorant, or being deliberately obtuse.
As for the testing we did back in the "50s and 60s", you really should bone up on the difference between fission (atomic) and fusion (hydrogen), and the difference between the two types of bombs. I'm no expert, but even I know THAT not unsubtle difference. We performed many tests back then with a vast array of variables. Not all of the tests we performed were altitude-detonated and not all of the bombs were of the same yield. You might want to check this site out (http://nuclearweaponarchive.org/Usa/Tests/Dominic.html) for verification of that, and note this excerpt: "The electromagnetic pulse (EMP) from this test sent power line surges throughout Oahu, knocking out street lighting, blowing fuzes and circuit breakers, and triggering burglar alarms."
And speaking of fiction, (like the show Jericho)....do you 'really' want to get into the subject of how many technologies we have today that heretofore, in the past, were thought of as mere fiction, or rather, as science fiction?
That's what I was thinking. We can argue as to the extent an EMP attack would cripple us...we can argue if it would ever happen...but to say it doesn't exist? I got the feeling I was dealing with an incredibly ignorant person or a troll. EMP is so well documented its not even funny. Its a documented fact that the effects (the degree is debatable) go out for long distances (line of sight) and it is a fact high altitude bursts won't kill you.
Now...others have suggest we not worry about it because there are bigger threats. I agree with that. However, preparing for this also prepares you for most other threats: Massive civil upheaval caused by an economic collapse (and the subsequent looters trying to take my stuff)...earthquakes...massive CME (like happened in 1859...if it were today...we WOULD be back into the 19th century). Etc.
Be able to grow your own food and have enough stocked away for emergencies. I can provide water, warmth, meat and veggies to my family (for an extended period of time). I can also protect them from any reasonable threat. So whether its economics or an EMP...we would survive.