https://www.reuters.com/article/us-facebook-libra-ecb/facebooks-libra-will-be-disruptive-says-ecbs-coeure-idUSKBN1W226N >Digital currencies such as Facebook's Libra will disrupt the financial system, either by forcing central banks to innovate or by grabbing a global role that could challenge the dominance of the dollar, ECB board member Benoit Coeure said on Tuesday.