I am a mom from Newtown, and my younger daughter is six years old. Before December 14, 2012, I would have described myself differently: political moderate, high school science teacher. But in the six months since that terrible day, when 20 of my daughter’s peers and six of her teacher’s colleagues were murdered at Sandy Hook Elementary School, right down the road from my daughter’s own school, being a Newtown mom seems to overshadow everything else about me. I am raising my family in a place that exemplifies America’s most chilling truth. Everything we value most: our children, our families,...