Well! Its very important to protect accounts from hacking or other theft activities but also its necessary for security agencies to unearth the illegal money from other sources. I suggested that check balance must be enssured.
For Complete Article Visit under mentioned link.
For security agencies, blockchain goes from suspect to potential solution
For the full story:
http://www.investing.com/news/cryptocurrency-news/for-security-agencies-blockchain-goes-from-suspect-to-potential-solution-945472