<img alt="2012-06-26-canadaflag.png" src="http://images.huffingtonpost.com/2012-06-26-canadaflag.png" width="300" height="55" /> It is precisely this welcoming, heterogeneous Canada that makes the contrast with elements of our past so stark. And as our nation's birthday approaches, it would perhaps do us some good to remember how recently our ideas about immigrants changed.
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