Former U.S. Secretary of State Hillary Clinton on Friday warned nations across the globe to take the growing popularity of cryptocurrencies seriously, because these instruments have the potential to undermine the power of nation states and the role of the U.S. dollar in the global economy.

“One more area that I hope nation states start paying greater attention to is the rise of cryptocurrency — because what looks like a very interesting and somewhat exotic effort to literally mine new coins in order to trade with the has…