The Russians used KGB operatives in Dimona, took pictures and gave them to the Arab countries surrounding in order to increase weapon sales and develop stronger ties with those nations. Why do you think the Americans found pictures of it when they entered an Iraqi intelligence office. Vanunu was a traitor to the nation and brought it out publicly to the national press.
Greek coast guard seizes ship carrying weapons to Libya (Reuters)
from the article: A secret guard for nuclear ambiguity