The National Science Foundation created the “Dark Web” project to hunt for Jihadis online.

This is where the Dark Web project comes in. Using advanced techniques such as Web spidering, link analysis, content analysis, authorship analysis, sentiment analysis and multimedia analysis, Chen and his team can find, catalogue and analyze extremist activities online.

One of the tools… is a technique called Writeprint which automatically extracts thousands of multilingual, structural, and semantic features to determine who is creating ‘anonymous’ content online.

Via Belmont Club, where Wretchard’s comments about the evolving arms race in the Cyberwar. The Jihadis are learning to fight back with “booby-trap” viruses and other countermeasures.