Keeping It Private

As those who care to, become more sophisticated about tapping into private communications, those who care for them not to are trying to stay at least one step ahead. Thanks to quantum mechanics, they may be succeeding (and P.S., kudos to The Economist for yet another great headline!): http://www.economist.com/news/science-and-technology/21578358-eavesdropping-secret-communications-about-get-harder-solace