Hidden on the net is online content which is not so easily accessed, known as the Deepnet (also sometimes called Darknet, the Deep Web or Hidden Web).
Julian Bhardwaj takes us on a tour, and asks should computer users be allowed to remain anonymous online?
A recently published Freedom of Information Act (FOI) request has revealed that in at least one case, the US police's hunt for online child pornographers has been hindered by Tor.
Eight men have been arrested for running a secret online store that sold more than $1 million worth of narcotics. It's alleged that the gang hid its tracks by operating on the Tor network.
The hacktivist collective Anonymous has declared war on internet paedophiles, attacking websites it accuses of carrying child abuse images and videos, and declaring that anyone who hosts, promotes or supports child pornography is a target.
The Feds have obtained access to WikiLeaks volunteer Jacob Appelbaum's email accounts with the help of a law that lets them go after email and cellphones without a search warrant.