Q. See question 3189 above. I heard that in Mexico City where armed street robberies are common, they permit carrying cash money on Shabbat in case one is assaulted and if he doesn't have what to give to his assailants, he may be shot. What is Horav Miller's opinion?
A. There are stories that after President Kennedy's assassination, and during other critical times, some Rabbis permitted carrying cash during Shabbos even in some Chassidic communities in the States.
Horav Shlomo Miller’s Shlit”a opinion is that one should better wear a fake gold ring, one can give away if confronted.
Rabbi A. Bartfeld as advised by Horav Shlomo Miller and Horav Aharon Miller Shlit'a