On Thursday, in response to the tragedy at Umpqua Community College, President Obama gave a speech in which he claimed that Americans have become “numb” to the violence of mass shootings.

I am a parent to two young children who also teaches at a community college three hundred miles north of Roseburg, and for the last several years—ever since reports of public shootings have cycled through the news with stunning regularity—I haven’t been numb, I’ve been afraid.

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