Censorship seems to be a theme today. Wild Bee has posted a pretty good introduction to what the TOR router (the “onion” router) is, how it works, and how it’s used to circumvent censorship regimes. One of the more interesting aspects of implementing the TOR router — even if you don’t feel you need enhanced internet privacy — is that you can passively enable users who desperately need a way to communicate securely beyond their national borders.
Like all open source projects, TOR is not without its faults and vulnerabilities, 
but it does an admirable job of staying ahead of the parties who would undermine it. It’s also a great example of how the internet development community constantly adapts to challenges and, in this case, literally routes traffic around them. I would go so far as to actually describe TOR as a genuinely, morally virtuous project.
