ecumenical patriarch bartholomew, spiritual leader of the world's more than 300 million eastern orthodoxstians was a halki graduate, as were many of the top orthodox leaders in the u.s. orthodox officials say halki's closure has had a profound impact on their church. >> we were deprived of our right, of our ability to renew our clergy. it was a very big loss for us. and this lasts already 43 years. it's a long time. >> metropolitan elpidophoros of born in turkey. as a young man called to study theology, he said he had no choice but to do so elsewhere. he studied in greece. >> when i finished my doctorate studies and was elevated to professor again i had to go to another country to be a professor. in my own country, my own school, my own monastery is closed. and i cannot do that. and i'm a citizen of this country. >> halki was shuttered during a time of strong pro-turkish nationalism. because of long-standing tensions between turkey and its neighbor greece, all entities perceived as having ties to orthodox church or greece suffered severe restrictions. those sentiments linger in many quar