Snowden Leak Suggests NSA Is Extensively Tracking Bitcoin Users :The U.S. National Security Agency (NSA) has been reportedly monitoring the bitcoin blockchain with an eye on identifying users on the distributed network.
Link for details news:https://www.coindesk.com/nsa-reportedly-eyes-to-scrap-bitcoins-anonymity/
I don't think it's a good or bad news because as far as I know bitcoin is anonymity digital currency.
Tracking bitcoin users ? How it's work? I mean everyone can track as long as you know the wallet address. Honestly I think it's lossing a privacy to all users of bitcoin.
I do not think that still there is any solid reason for that, may be some people just want to spread propaganda against bitcoin and want to put some negative effect on bitcoin, but i am sure that they will never succeeded in their ambition and bitcoin will survive as anonymous currency forever.