For example, a person who exhibits curiosity by visiting many Islamist websites and asking numerous questions in online forums might be flagged by sentiment-analysis software if he shows signs of resentment and eventually turns to "radicalising" others by, say, justifying violence and providing links to militant videos.
Poole is still remaining tight-lipped on the exact details of Canvas, but he did tell us that it is "a re-imagination of the online community– a look at what forums might be if they were invented today".
"In a national forum, that might be a little difficult to appreciate, but she's a woman who doesn't back down".
If messages have been posted on non-radical forums it might be possible for police or intelligence services to get information about the IP address that has been used when making the posting, but this cannot be expected to be retrieved from extremist forums.
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Since then, the candidates have not agreed to any group forums where they might be drawn into discussions or quarrels.
Anne Tate, a spokeswoman for the publisher, said in an e-mail, "We're sensitive about putting our author in forums where he might be viewed as a stand-in for his subject".
The students were barred because the event's organizers said they were "not victims of racialization" and that the forum's intended participants might be reluctant to discuss their experiences with non-victim students present.
Instead it finds online forums in which both might be spoken, then ships the message there with a request for human help.
The USA is not a signatory to the International Criminal Court (ICC) or many other international legal forums where legal action might be started.
