Is this what the U.S. will need to do to Citigroup and the rest of the lot? Truth unfolds in time through a communal process.
Also, most banks are partly international, so nationalising (say) Barclays would be an interesting administrative challenge - far more complicated than nationalising NR or B&B.
Likewise I doubt the US will nationalise anything or anyone, because that would be [shudder...] socialism.
The recipients of bailout money to date are probably waiting to see if the terms of their credit default liabilities are triggered. I remain convinced that these products need to be voided or quickly unwound. If triggered, they could set off a financial Armageddon. That creates the mother of all financial uncertainties, with the consequences we see all around. As the Dutch said while fighting the Spanish: "It is not necessary to have hope in order to persevere."