The US political stance on the inclusion of crypto assets in the pension system remains divided. Senator Elizabeth Warren recently publicly criticized the Trump administration's new policy—integrating cryptocurrencies into 401(k) pension accounts. She believes this move poses significant risk hazards and could threaten the retirement savings security of ordinary investors. The 401(k), as a mainstream employer-sponsored pension plan in the US, has long been a focus of attention regarding the expansion of its investment scope. This debate over traditional financial instruments versus emerging digital assets reflects ongoing regulatory concerns about risk management in cryptocurrencies.