PALMYRA, N.Y. -- Don and Lee Preston, who teach at an international school near Shanghai, were sitting under a gaily striped tent on a recent Saturday in a field near the birthplace of the Mormon prophet Joseph Smith, helping entertain a group of Mormon teenagers.
The Prestons could have gone home to Arizona for their vacation -- "but we wanted to do something more meaningful with our summer than eating in restaurants and seeing movies," said Lee, 43.
