You're implying that the U.S. securities worth hundreds of billions held by a nation will be under threat of theft (by the U.S. government itself?) because the

You're implying that the U.S. securities worth hundreds of billions held by a nation will be under threat of theft (by the U.S. government itself?) because the nation doesn't "have bargaining chips"? So the U.S. will begin to rob and plunder the bank accounts of countries that don't have a bargaining chip? Is that where the U.S. heading? The daylight roberry of the bank accounts of foreigners?