Gurski: Linking immigration and terrorism is wrong, here and elsewhere

I never knew my maternal grandfather. He emigrated to Canada in the early part of the 20th century from western Ukraine (or eastern Poland, the details on that are fuzzy) and settled in Montreal where he worked at the CPR’s Angus workshops, along with a great many other immigrants, I imagine. He married and had four children, including my mother, and toughed it out during the Great Depression. He died in the mid-1940s.
I seldom think of him but his memory came back to me last week when I r