"Children of the Left, Unite!" my essay about Tales for Little Rebels, an anthology of radical children's literature edited by Julia L. Mickenberg and Phlip Nel, appears in the 11 January 2009 issue of the New York Times Book Review.
An afterthought: Though, as you will see if you read my essay, the play about the beavers left me cold, I learn from Vicky Raab, writing at the New Yorker's Book Bench blog about Sally Quinn's new history of the WPA theater, that when it was staged with roller skates in the 1930s, it seemed "so thrilling that it incited children to rush the stage." De castoribus* non est disputandum, evidently.
* Declension corrected! A proper Latinist points out that not the genitive but the ablative is required here.