Students planning demonstrations for soviet jews asked Lubavicher Rebbe and he advised them against out of fear for the students. They did and eventually helped mln of jews to be freed. So there are limits to prophetic vision… other rabbonim gave the same answer: r. Moshe and r Teitz for the same reason and r Soloveitchik because he got advice from Israeli politicians that it is better for soviet jews to keep quiet. When he realized that the advice was self serving and incorrect, he reversed his opinion. Chacham v Navi…
