Ah, Yom Kippur, the Jewish day of atonement. What better way to spend the eve of the holiday than by slaughtering an animal? The NY Times reports that the tradition of kaparot--"Orthodox Jews take live chickens, swing them over their heads as a means of symbolically transferring sins to the chickens, and then slaughter them"-- is attracting protest. Rabbi Hecht (whose father revived the tradition) says he received threats via email, phone and letters. His......