Cultural Property crusaders David Gill and Paul Barford have dredged up two somewhat dated investigations by Greek authorities relating to coins on their respective blogs. One investigation led to the repatriation of a Roman denarius to Greece. The other investigation-- the result of which has not been publicised-- related to a Thracian silver coin. See http://lootingmatters.blogspot.com/2010/08/greece-and-coins-denarius.html
Gill and Barford suggest these incidents somehow lend support to Greece's request for an MOU with the United States. But do they? In each case, the dealers in question fully cooperated with the authorities. In each case, the investigations took place in Europe and not in the United States. So, what exactly is the relevance?
And then let's consider the coins themselves. One investigation related to a Roman denarius. Those who support import restrictions claim such coins should be treated as presumptively Italian and not presumptively Greek. And ancient Thrace encompassed the borders of present day Greece, Bulgaria and Turkey. It would be interesting to learn whether Gill, Barford and friends believe Thacian coins should therefore be considered presumptively Greek, presumptively Bulgarian or presumptively Turkish.
Or, perhaps it is indeed better that import restrictions only be used to return artifacts traced back to illicit excavations in modern nation states like Greece through good police work.