How will crypto currencies affect US National Security?

As a keen observer of the financial landscape, I must inquire: How will the proliferation of cryptocurrencies impact the intricate fabric of US National Security? Will the decentralized nature of these digital assets undermine the traditional financial systems that underpin our national security apparatus? Or, conversely, will the enhanced efficiency and traceability they provide help us thwart threats and enhance the overall resilience of our nation? The potential for both disruption and innovation exists, but the precise implications remain a mystery. Can you elaborate on the potential risks and opportunities that cryptocurrencies pose to US National Security?