If we go down, the whole world goes down. We are the world police and without us many countries will have to spend a lot of money for national security.
Your so called "Police" are the very people who have started (in one way or another) most of the wars in the last 50 years. Why? because the US sell arms to the world and that mega business needs war.
Also hope you are aware that the US sold arms to the "taliban" in Afghanistan and to Iraq and Iran and just about everyone else you care to mention.
War is one of your biggest exports.
I would add that this is beyond just the USA (so don't take it too personally).
It just so happens that many mega companies that feed on war are based in the USA and have huge pull in your government and foreign policy.
As snowwolf said growing and storing some food is a wise move right now. Even if the shit doesn't fully implode (I think it will in the next year or two ) it won't hurt to have some provisions in place.
A split board and some skins might be good two just in case the lifts stop.