Scale makes no difference. You make a law (or regulation or whatever) and each bank does the work. Who cares if there are 4 or 4000, each bank just does it. US

Scale makes no difference. You make a law (or regulation or whatever) and each bank does the work. Who cares if there are 4 or 4000, each bank just does it. US Banks are forced to do new things all the time to remain compliant (PCI anyone?)...and they get it done. This is not getting done because the banks make a lot of money not doing it, and lobby to keep it that way