that is not how those securities work....if you buy such a security you are betting on your own disaster... How? When you buy what is called A tranches it alw

that is not how those securities work....if you buy such a security you are betting on your own disaster... How? When you buy what is called A tranches it always has a layer of toxic non A tranches.... Once housing repossessions rose above 8% all housing mort securities were under water....