The dinosaur was seized by federal Immigration and Customs Enforcement agents after it was sold at auction in New York for over $1 million last year. The government said the skeleton was mislabeled as reptile bones from Great Britain. By law, any dinosaur fossils found in Mongolia belong to the country and its people. "It's really important that as nations, we recognize there's a difference between art sold in the regular course of business, and then there are things that are truly national heritage," said ICE director John Morton.