1 quadrillion yen is about 12 trillion US.
And if TSHTF the Japs proved in Fukijima, that they can do what they have to do.
If TSHTF in the US, I’m not so sure about us.
Japan is a high trust society, with civilians willing to trust authorities, and authorities taking great care to not abuse that trust.
Unfortunately, while the average American citizen is willing to put their trust in authorities, I cannot say that the authorities are unwilling to abuse that trust.