Exceptionally bad?

We've posted before on the Child LWOP question -- that is, the legality vel non of sentencing juveniles to prison for the rest of their lives, without possibility of parole.

Our Opinio Juris colleague Peggy McGuinness has an excellent post on this question, linking it to her own scholarship on how "transnational norm entrepreneurs" (our prior posts would seem to make IntLawGrrls one of them) fill gaps in the landscape of transnational law.

Characterization of this as an example of "'bad' American exceptionalism" seems worth a ponder, though. Can't help noticing that when other states' "bad" behavior becomes so unique as to leave them standing alone in the international community, many U.S. commentators tend to apply labels far less delicate than that.