鲍威尔：研究、并撤销之前发布的加密数字货币指导意见。

Core Viewpoint - The Federal Reserve Chairman Jerome Powell announced the intention to review and potentially withdraw previously issued guidance on cryptocurrencies [1] Group 1 - The decision to reassess the guidance indicates a shift in regulatory approach towards digital currencies [1] - This move may reflect growing concerns about the implications of cryptocurrencies on financial stability and consumer protection [1] - The review process could lead to new regulations or frameworks that better address the evolving landscape of digital assets [1]