[Worldtraveler once upon a time]

--- "The answers to these questions require us to a state of knowledge that we do not have, principally the actual state of the vulnerability of the Russian economy, and the power of Ukraine to hold on."

Good point. We have a quickly available "state" of this nation which began 2000 with a national debt of about $5 trillion, and twenty-five years later....

$ 37,284,510,479,122 and still rising rapidly

As has been said, "...if it can't go on forever it will stop."

[Captain Peter Blood]

Excellent point, Every President since 2000 has helped destroy this country with Debt, between 2016 and 2028 we will have added $24 Trillion to the National Debt because of two Presidents.