 This document set out core principles to be adopted by all participating jurisdictions, including the legal and operational capability for such a super special resolution regime (now known as 'bail-in').In late 2012, Tucker co-authored an op-ed with FDIC Chairman Martin Gruenberg that described how different countries should cooperate on the resolution of a cross-border bank.In December 2015, two years after leaving office, Tucker became chair of the Systemic Risk Council , a body set up in 2012 by former regulators and central bankers to promote financial stability.