Greek archaeologists hope Greek railroad authorities let them investigate the remains of the famed Altar of the Twelve Gods rather than rebury it under a railway line. See
http://www.ekathimerini.com/4dcgi/_w_articles_wsite4_1_17/02/2011_379147
The fact that such an important site instead will likely be quickly reburied to hurry along the project once again shows countries like Greece may make grandiose claims about the importance of their cultural patrimony to justify repatriation and import restrictions, but archaeology is the first to go by the wayside when a country's own economic interests are considered.