The worst case scenario is if the Dollar, Bond, and Equities start going down together as the world repudiates the US Dollar Reserve Currency and Credit Bubble.
This is not a probable scenario.
The last time it happened was in 1933 in the trough of the Great Depression.
But we may have the opportunity to see something as once-in-a-lifetime and memorable as John Law's Banque Générale and the Mississipi Bubble.
Let's hope the Federal Reserve can reach deeper in its pockets for a better class of tricks than just front running the dollar and the bonds until they fall over.
Certainly anything is possible, but it does appear as though the US Long Bond is hitting a 'high note' of improbable valuation unless the world accepts a single currency dollar regime.
“Thus, it should be understood that when pro-US figures use the term, 'rules-based international order,' they are not referring to anything analogous to the rule of law. Quite the opposite, they are using Orwellian language to describe a system in which essentially no rules can be established and/or observed, given that the dominant state has the prerogative to violate and/or rewrite “rules” at its whim.” Aaron Good, American Exception