Logician said: There are very clear statements that certain Gedlom advised against emigration to America DESPITE the obvious dangers in Europe.
I heard the following story from someone who was present. Rav Zelig Epstein ztl, once recounted that certain individuals within Mir were scared of the situation as it was unfolding before WWII and found a way to get papers to go to China. They asked the roshei yeshivos at the Mir what to do and were told not to get the papers to China because everything was going to turn out okay in Europe. The bochrim went out and got the papers anyway. When things got bad they were able to get everyone out. When Rav Zelig was telling this story the listeners asked him how could the Mir Bochrim do such a thing and go against “daas torah.” he responded by saying, “this story happened before daas torah was invented.”