For most of us, a knock at the door is nothing to worry about. But when Ahmad Tabrizi first arrived in Vancouver as a refugee from Iran in 1987, that sound meant something ominous. “When I came here, I didn’t speak any English,” Tabrizi said in an interview. “When I heard a knock at the door, I thought: ‘Is that Immigration coming to take me away?’” Yet, as he soon discovered, it wasn’t always something he had to fear.

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