>>47382
If America launched land-based ICBMs it would take about 30 minutes for them to reach European Russia where the majority of their population lies. That is more than enough time for virtually any country with functioning scientists/engineers (all the nuclear-armed ones) to be able to figure out whodunnit and retaliate. Countries like Russia have the capability to detect if the US is launching nukes before the official command to fire is ever given because electronics warfare and missile warfare are their specialties. Similarly the Americans and Chinese likely possess this capability as do the Australians, Japanese, French, etc. Possibly even the Indians and Brazilians for that matter.
At most if America launched everything they had in reserve for that particular country with the ones for the other countries at the ready on standby and secretly told their allies in advance without anyone squealing, they might just be able to turn it into a limited exchange, but at the end of the day if all of your major cities and industrial centers are still destroyed anyways, whether you saved a few supplementary targets or not seems like a Pyrrhic victory.
>>48845
1) Buy CE marking electronics that you want to protect because they (the Europeans) have a guaranteed Volt-meter field test ensuring they can survive a certain amount of fuckery, unlike American electronics which have no such requirements. At bare minimum ensure that your electronics you wish to protect have an Underwriters Laboratories label for peace of mind.
2) Wrap your electronics in two or three layers of aluminum broiler trays (about 10+ layers of regular foil) to achieve 85% effectiveness against a nuclear-grade EMP
3) For a proper 98% effectiveness, wrap the objects in bronze/copper knitting or honestly even stainless steel knitting, and then surround it with some kind of flat copper surface to absorb/reflect the initial fuckery that will hit it.
For an entire house I don't know what to tell you, but there is no cheap way to do a whole home. A box sure, maybe even a closet at a price, but the only faraday cage building that I know about is that chainmail house in Scotland. Video related.