A special division within the Department of Defense is investigating the popular cryptocurrency, looking for answers towards if it could be used by terrorists to perform a threat to the national security. The Combating Terrorism Technical Support Office have created a program which will help the military understand highly new things such as cryptocurrencies and help them understand how they can pose a threat.
“The introduction of virtual currency will likely shape threat finance by increasing the opaqueness, transactional velocity, and overall efficiencies of terrorist attacks," A memo stated. The DoD is not happy about the anonymous transactions that the Bitcoin offers to its users, while they can see all transactions they cannot see who send and received it.
This allows people to transfer funds across the globe without being traced in any sort of way and brings the same "security" for them as a cash trade would do. There has been no proof of terrorism funded by cryptocurrencies yet though, but the department will continue to operate to ensure that no such thing will happen in any case.
The departments main subject is to ensure that weapons, bombs and similar artifacts will not be smuggled illegally into the country and that such things are not up for purchase through cryptocurrencies.