Dreadlocks go back "thousands and thousands of years," according to professor Bert Ashe, who also shares his own dreadlocks stories.
A Massachusetts-based group of Internet activists is helping Egyptian protesters stay online, while hiding their cyber tracks from the government.
Just before the Egyptian government shut down the Internet in the country last week, The Tor Project saw a spike in Egyptian users downloading its free anonymity software. We speak with Andrew Lewman, executive director of Tor.
We now have a digital bookshelf! Explore all our books coverage or browse by genre.