The Orthodox Churches are not alone in their collaboration with communism, apparently:

"Polish archbishop resigns, says contacts with communists hurt church" - Catholic News Service, 1/8/07

he acted as an informer for Poland's former communist secret police

"Warsaw archbishop's resignation prompts Vatican embarrassment" - Catholic News Service, 1/8/07

Vatican officials expressed irritation that the archbishop had apparently not been fully frank about his past from the beginning.

They also questioned how the Vatican's normally exhaustive vetting process broke down in one of Eastern Europe's most important episcopal appointments.

"When Msgr. Wielgus was nominated, we knew nothing about his collaboration with the secret police."