^^^
To be honest, I was only 1/2 watching it as I was also reading TD, making cartoons for the kids on the 'puter and had the football on the radio.
One thing that did shine through was a Man who had his own welding business in the USA.
Located somewhere in/near the mountains.
Some of the guys you saw on the show did have that slightly social misfit look about them, some of them just looked like your average neighbour.
The welder guy fitted that last brief.
Family guy, nice wife, 3 or 4 kids, looks like he owned the welding business.
At his Family home, he had stored 3 years worth of provisions, plus he had the serious shelter tucked up in the mountains ... @ 11,000 feet!
A 2 hour drive from his home.
What was different about this guy was he didn't have 6 firearms, dog pack etc to guard his treasure trove from the hungry maunders.
He then went onto explain his underground shelters he builds for a living.
One design feature I didn't understand was the 3/4 metre crawl tube to enter it until ...
... until he described his egress security provision.
If an intruder happened to open the capsule's outside hatch and tried to enter, first they would have to crawl though the entry tube.
One push of the BIG RED BUTTON from within the safe, inner sanctions of the capsule and that tube turned into a gas fired
cremation tube, incinerating the body of the intruder.
He said ... 'I am a welder after all" 

Originally Posted by
Looper
So without having to watch the docos what is the top reason why a US citizen in the US thinks they will need to go into survival mode?
This guy's rational was that he believed that there was going to be, within his lifetime a Global Earth's Magnetic Pole reversal.
Apparently, in the Earth's timeline, happens all the time ... on average every 200,000 - 300,000 years ... 

Reversals are the rule, not the exception.
Earth has settled in the last 20 million years into a pattern of a pole reversal about every 200,000 to 300,000 years,
although it has been more than twice that long since the last reversal.
A reversal happens over hundreds or thousands of years, and it is not exactly a clean back flip.
Magnetic fields morph and push and pull at one another, with multiple poles emerging at odd latitudes throughout the process.
Scientists estimate reversals have happened at least hundreds of times over the past three billion years.
And while reversals have happened more frequently in "recent" years, when dinosaurs walked Earth a reversal was
more likely to happen only about every one million years.
NASA
So, apparently this PREPPER was also a FLIPPER
Personally, I believe that you can adapt to live in Thailand, the force is strong with you and you'd survive longer then most come judgement day.
.