In fight on terror, encryption is double-edged sword
Encryption can be a terrorist's tool. But it's also a key for those hunting attackers, and for many others. The technology for encryption can keep data and conversations private, making…
Chinese investors look to mine Bitcoin volatility
Chinese speculators have seen Bitcoin values plunge, soar and plunge again within days, but say the virtual currency's extreme volatility is a profit opportunity despite the white-knuckle ride. China is…
