Since the begining of this century, NSA has invested billion dollars in some secret activities to keep its ability of eavesdrop and taken this as its great mission. If the information from terrorist, foreign spy and other foes, US will be the one to attack.
It is said that NSA cooperates with multipal technology companies to use high speed computer to crack secret codes. This institue has decoded the encryption skill of protecting global business and bank system, kept the business secret,medical record and other sensitive data, at the same time, the safety of emails, internet surfing, online chatting in US is automatically protected.
An intelligence budget file has shown that this kind of action is still going on. The American national intelligence supervisor James R. Clapper Jr. has written that:"We have invested a lot of funds on breakthrough password analysis to attack the password technology and network traffic of foes."
There is rumor in the past that Bitcoin is one of the institutions of NSA.However, all the details around the national institution have shown that Bitcoin community has become the goal. Many people in Bitcoin community believe that NSA is cracking the Bitcoin agreement, which is one of the great tasks for them.