Facebook’s (FB.O) proposed Libra digital coin must show it is “rock solid” before it can be allowed to launch, Bank of England Governor Mark Carney said on Thursday. The social media giant plans to build a digital currency, raising concerns among global regulators that it could quickly become systemic given Facebook’s huge cross-border reach. But Carney said many issues needed addressing first, such as anti-money laundering and terrorist financing controls, and managing and safekeeping the assets underpinning Libra. “If you are a systemic payment system, you have to be on all the time. You can’t have teething ... (full story)