Spanish lawmakers have asked the country's financial regulator to implement a "traffic light" risk warning system for crypto assets, which will be classified into green, yellow, orange and red based on their registration, support and regulation, as well as the stability of their market performance. Green is for assets that are registered, backed and well regulated; yellow is for assets with "limited backing" or moderate volatility; orange is for unregulated, high-risk assets; and red is for spec...