Just as there was concern over so much hashrate capacity existing in China (before they banned bitcoin mining in China), there now should be growing concern that there could be too much hashrate capacity in the U.S. Bitcoin mining must not just be geographically distributed, but geopolitically distributed as well. BitFinex is one such organization that is concerned:
Ardoino reiterated that #Bitfinex and #Tether's main aim with the new venture is to ensure that the Bitcoin network's hash rate, or computing power, has geopolitical diversity. "Our mission is to decentralize the spread of bitcoin mining geographically and politically," he said.