Euro back in crisis mode as Davos awaits ECB guidance

Draghi attempts to craft cross-border consensus needed for full-blown QE

It's a familiar place for the currency bloc, which spent the past five years struggling for growth, the faith of investors and even its very existence.

The latest concerns, that failure to break political logjams dumps the region back into recession and crisis, are propelling the continent back up the worry list of investors, executives and policy makers heading to the World Economic Forum's annual meeting in Davos.