Tech responds to growing calls for Internet anonymity

Before Edward Snowden, the National Security Agency and Prism made headlines, a group of technologists was dedicated to making the Internet more anonymous. They were viewed mostly as paranoid, weird and potentially criminal. Now, more than a year after revelations of the government's mass electronic surveillance program, they are leaders in a movement heating up in Silicon Valley and abroad to create more ways for people to use the Internet while keeping private who and where they are, and what they're doing on the Web. These include e-mail accounts that cannot be spied on, file-sharing services that the government cannot trace, and message services that cannot be recorded and stored.