As I understand, the alleged targets were related to Jewish communities.
The fact of multiculturalism has taken a pollyannaish tone in the mainstream, and I think events have borne out that this is the wrong way to go about dealing with migrant populations. Though well-motivated, the haste to crush dissention on the topic of migration has been a concern for me because we had assumed attitudes among different nationalities will work themselves out as though automatically. This has been at the heart of my reactionary tendencies.
I haven't yet learned how to embed video links, but here was the original source https://www.youtube.com/watch?v=I1vaRHzEGRg
Christian Paas-Lang discusses this in further on the CBC website. The subheading is "RCMP notes spike in youths arrested on terror-related charges — five since summer". It is a well written article which I encourage you to look at it.