Yikes. Sobering. So if the dollar tanks, we are in huge trouble?
In the transient case, yes, because the nation only has a few months worth of food stores (JIT you know). We have plenty of productive land that can be converted to food production, but whether the tooling, knowledge, labor, and distribution exists to make that change under the duress of chaos is unknown.
Comparative advantage has its unaccounted and socialized risks.
National security starts with food security, but is founded in human relationships based in a common morality. Somebody taught us how to manage that risk 3,500 years ago, but nobody seems to have listened.