William Quigley, co-founder of WAX and Tether, discusses the potential benefits and challenges of tokenizing the banking system in an interview with Selva Ozelli for crypto.news. Tokenization has the potential to improve settlement efficiency and reduce intermediaries, but it also comes with risks and challenges such as cyber security and differing regulatory regimes across countries. Quigley mentions Tether, the world's most traded digital asset, which is fiat-backed and used widely in legitimate transactions but can also be used for illicit activities.