My 5 year-old son and I have had two conversations about the police -- or “la policia,” as we call them – already this week. In the first, he declared to me that “all police are not bad.” That’s part of a larger and ongoing post-Trayvon talk we’ve been having this summer (more on that here ). Then yesterday morning, he pointed out that the “police man or police woman,” did not have the siren on. The combination of that, and the fact that my father --an Episcopal minister and civil rights activist – attended the March on Washington fifty years ago – has set me to thinking about whether, what...