What's so special about Thanksgiving food?

What do Thanksgiving favorites turkey, corn, sweet potatoes, green beans, potatoes, and pumpkin have in common? Is a harvest festival unique to America or universally celebrated? How else does Thanksgiving in the United States represent cooperation between Native Americans and European immigrants? Click xx to hear Dr. Steve Nash, curator of archaeology at the Denver Museum of Nature & Science, provide food for thought about one of our best loved holidays.