Some jew, you are right in theory, that is why I am asking based on reported cases. Apparently r Eliashev relied on what his trusted assistants told him without double checking that required picking up the phone. I understand why this might happen, but I would have to presume that it is unlikely that this happened only once. In the other case, RJBS presumably didn’t disclose to the students his confidential sources in the Israeli government, just related the conclusion that it is best for soviet jews to continue being quiet. Interestingly, you are right that the students who didn’t follow this psak, as well as R Moshe, L Rebbe and r Teitz presumably reevaluated the explanations (other rabonim had a different explanation: personal risk to students from soviet agents)
