From Sioux City to Memphis, New York to Los Angeles, and everywhere in between, synagogues faced an internal debate about separate seating for men and women and the partitions between them. Many of them turned to none other than R. Moshe Feinstein. Moshe Kurtz lays out the halakhic debate, societal factors, and reception by one of the Iggerot Moshe’s most ardent interlocutors: The Satmar Rav.