Why an EU banking union poses an existential threat to the UK - opinion October 10, 2012 X LinkedIn Email Show more sharing options Copy Link URLCopied! Print X LinkedIn Email A banking and fiscal union in the Eurozone would represent an almighty challenge to the UK, says Cities of London & Westminster MP, Mark Field Unlock this content. The content you are trying to view is exclusive to our subscribers. To unlock this content: Take a Free Trial or Login