>The British and Dutch, for their part, should never have allowed a bank to take deposits from their citizens without forcing it to participate in their own deposit guarantee schemes.<

But after Iceland was a member of the EEA, other governments had no input in that. Eu-member or in this case EEA member and your banks can operate everywhere. meanwhile they are still regulated and deposit-insured by their national states. And that, as as Iceland and up to a point Ireland shows, is a problem.

And once you have opened for savers out of other EU-countries, they are as senior as your domestic savers and you have to treat both the same way.