A vitamin vs. a pain pill: Why do we wait for kids to fall behind?
In the late 1800s, Joseph Malins, an English activist, wrote a poem about a cliff, a fence and an ambulance. The gist: There's a cliff that's very pleasant to walk on, so many people in the town nearby venture close to its edge. Some slip and fall into the valley below, and the town decides something has to be done.
