I'll speak more perhaps at a higher level and from a practitioner's perspective.
I don't blame the Internet for radicalization, but it certainly is an important pathway and part of an ecosystem that leads somebody to falling prey to negative messaging.
I'd also like to underline, as it has been recently underlined once again in the United States in a more recent study, that the biggest threat of radicalization is actually the extreme right and not Islamic extremism. I think that's a very important piece.
Radicalization or extremism is extremism is extremism. It's the idea that we're now increasingly living in a world in which we're able to purvey hatred, and we can entice people and we can motivate them. The challenge for the security agency is that a person will come to their attention sometimes quite often through the issue of data exploitation and quite often through the issue of people posting online. Aaron Driver, the case in Ontario just about a year and a half ago, is a great example of that.
That's still an important toolset. The question is how to know when somebody goes from becoming radicalized—becoming incensed and thinking about it, maybe making some comments about mobilizing towards operational planning—to knowing when they really intend to do it. That's the big dilemma for the intelligence agencies and the law enforcement groups such as the RCMP that work together on those cases.