It's their heritage not Yale's. The Brits and the rest should be turning everything back to the Egyptians and Greeks. It's not finders keepers.
An interesting take on the subject. If it was not for people like the "Brits" or the archeologist from Yale, much of these "treasures" would not exist (or have been looted or remained "lost").
These cultures that claim ownership had no interest in these artifacts until after they were rediscovered, salvaged, and studied.
I would think these ancient sites could be views as ship wreck where if the ship is abandoned, whoever salvages the cargo owns the cargo.
It was not Egyptians that discovered the secrets to the hieroglyphics nor was it a Peruvian who discovered the history of the Incas.
These cultures ignored their own history until outsiders showed up and re-discovered it for them.
BUMP!