Thanks for the warning, Clinton.
There is no end to the doomsday possibilities .
I rather miss watching 'Doomsday Preppers' on TV. Maybe it wasn't the producer's intention, but I found it entertaining. Sadly, too many people are focussing on their favorite doom risk - when in reality one of the other ones might play out.
My answer is to try to be aware of world events and prepared to change lifestyle quickly if needed. The key to happy life is resilience and adaptablity.