U.S. attorney Preet Bharara, left, for the Southern District of New York, Homeland Security Investigations Special Agent in Charge James T. Hayes, Jr., center, Od Och, permanent representative of Mongolia to the United Nations are pictured in a formal ceremony in Manhattan July 10, 2014. Immigration and Customs Enforcement and the Justice Department returned to the Mongolian government, the fossilized remains of more than 18 dinosaur skeletons, including two Tyrannosaurus bataar skeletons that were unlawfully taken from Mongolia.