The impact of U.S. policies on cryptocurrency is twofold: on one hand, regulations and taxes may restrict industry growth, as seen in cases like Ripple (XRP), which faced lawsuits for allegedly selling unregistered securities, affecting market prices and confidence. On the other hand, innovation support and technical research enhance credibility and compliance, exemplified by the National Institute of Standards and Technology (NIST) working on blockchain standardization to promote industry re...