It's a sign of just how deep tensions are around parenting today that, over two years after Amy Chua's "Battle Hymn of the Tiger Mother" was published, its combination of shocking revelation, serious reflection and tongue-in-cheek exaggeration still sends T. Rex-scale ripples skittering across the surface of our sociocultural Dixie cups.

Two weeks ago, novelist Kim Wong Keltner's "Tiger Babies Strike Back" was published — her nonfiction account of growing up under the paw of her authoritarian Tiger parents....