BH Just heard about this. Zalman Shazar arranged an official visit. If not for the opposers of Saba who knows how much could have been achieved way back then.
This is about Rabbi Nachman of Bresluv (Breslov, Bratslov), now known as Na Nach Nachmu Nachmun MayUman! This is about his chasid and chief disciple Rabbi Natan, it's about the Saba, the Baal HaPetek.