GCHQ, the British equivalent of the NSA, is closely monitoring bitcoin at the behest of its government. The code-cracking agency, famous for deciphering German communications via its Enigma machine in World War II, now has a new threat to track. Like many other government agencies around the world, it has taken a keen interest in bitcoin.
https://news.bitcoin.com/britains-gchq-spy-agency-closely-monitoring-bitcoin/