Green v. Shapiro on the Relevance of Deontic Logic

Scott Shapiro (Michigan) has weighed in with some sharp questions (scroll down) in response to the claim by Michael Steven Green (William & Mary) that Anglophone philosophers of law are "peculiar" and "prejudiced" in failing to attend to deontic logic.

UPDATE:  More on deontic logic--this time, in relation to ethics--here, with Ralph Wedgwood (Oxford), Mark Kalderon (UCL), Simon May (Virginia Tech), and Nick Zangwill (Durham), among others, weighing in.