I'd suggest the numbers are on the rise for exactly the reasons you've articulated. The opportunities for radicalization have been many. Some have arisen from charismatic leaders who may work with various groups within Canada, but even more opportunities have come through technological advancements. The Internet has proven to be a very valuable tool in recruiting and radicalizing individuals in Canada and elsewhere around the world. I would suggest there is definitely a link between developments in technology, the Internet in particular, and the increased rise in Canadians travelling to participate in these activities.
On December 3rd, 2012. See this statement in context.