Two years ago the Citizen Lab released a program called Psiphon, which allows users in countries such as China and Iran to circumvent their governments’ Internet censorship. The free software uses computers outside the censoring country — known as proxies — to fetch web pages and send them back over encrypted connections. The technique is also used by a host of other tools, but Deibert says the goal was to make it as user-friendly as possible.
From the Canadian Press