Is a seeing eye dog allowed in shul? How important is it to daven with a minyan? Join me as I explore a fascinating halachic debate, featuring R. Moshe Feinstein, R. MM Kasher, and the Lubavitcher Rebbe. Sources: Igros Moshe O.C. vol.1, siman 45; Igros Kodesh vol.18, p.422 and 455; conversation with R. Shnayer Leiman (Flushing NY); and Rabbi Aaron Slonim (Binghamton NY).