Some were smuggled out of the country, but the bulk of scholarship is done on reports of Eastern Bloc embassies in North Korea. As of 2018[update], Soviet documents from the 1960s are in the process of being declassified, but sources from Eastern European countries are already available. The availability of documents from the 1950s and especially the 1960s is contrasted with the fact that most of that which happened in North Korea took place outside of diplomatic circles, and foreign diplomats were given less and less information as time passed.