Comment by glaucon

|This is just what banks do O_o underwrite loans, then collateralize (i.e. bundle) to people who want the risk.

... and from the linked piece ...

| Banks do not sell down debt they are confident in

... I have no claim to expertise but both of these can't be true.

I wouldn't worry about it anyway, you can be sure when the day comes "they'll be to big to fail".