 In August 2001 he moved to St. Louis to take up the Hellenic Government-Karakas Family Foundation Endowed Professorship of Greek Studies as Professor of History and Archaeology with the Department of Anthropology and Archaeology at University of Missouri-St. Louis.He has excavated at various archaeological sites in Greece and Ukraine, including Mycenae, Epidavros, Ancient Corinth, Naxos, Ithaca, Oropos and Olbia (now Berezan) in the Black Sea.He is the director of Archaeological Research in Eleusis and since 1999 he directs the excavations of the Archaeological Society of Athens at Iklaina Messenia (IK.A.P .