For years, children and adults have stuffed their candid dreams, wishes, and promises into envelopes addressed to Santa Claus. Whether the envelopes come with stamps or without, are addressed to "The Big Red Guy at Jingle Bells Lane" or simply "To Santa," for over 100 years, millions of these letters have poured into Santa Claus, Indiana. Arriving from all corners of the globe, the letters ask for toys, family reunions, snow, and help for the needy--sometimes...