My daughter has all of the makings of a great activist: Her heart is giant, her mind is quick, and she's as naïve as an elf. She believes that every human being is good and kind and will do the right thing. Occasionally she will see otherwise: a guy throwing litter out his window, a mom sneaking soda into a water cup, a dog on a short leash chained to a tree. Dismayed, betrayed, and outraged, she processes these injustices as rare aberrations to her ideal world. She's wide open with no armor, I...