Responsa
R. Yehuda Henkin discusses whether those who believe that the Lubavitcher Rebbe is the messiah are considered to be heretics, ruling that they are not. (Bnei Banim 4:26)
He cites his grandfather R. Yosef Eliyahu Henkin that hearing Shofar and Megilah cannot be done by radio, and that therefore Kol Isha does not apply over the radio. R. Yehudah Henkin was unsure whether this applies to hearing a woman’s voice on television.
He allows women studying Talmud.
He permits dancing on the Sabbath.
He permits a man to shake a woman's hand where the woman extends her hand first, and vice versa.
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