AUGUSTA — It is closing time at the Maine State Library, and suited employees and patrons rush to empty the building, without so much as a look at the little girl of bronze. At the foot of the life-size statue is a bear cub holding an American flag and fresh carnations. Cupped in her outstretched hands is a dove. Plastic flowers grace her neck. Who is this girl frozen in time? The base of the statue offers: Samantha Reed Smith, Maine's Young Ambassador of Goodwill. Twenty years ago this week, the 11-year-old girl from Manchester took a highly-publicized VIP tour...