Journal Paper Title Of The Day
Heller, Mark. 2003. "The Immorality of Modal Realism, Or: How I Learned to Stop Worrying and Let the Children Drown", in Philosophical Studies,Vol 114, Iss. 1-2, pp. 1-22, May 2003.
(Which argues, by the way, that belief in the actuality of all possible worlds implies that we shouldn't bother saving drowning children in some situations, because they'll live in the same number of possible worlds regardless of how we might act. It's an interesting form of objection, given that it uses moral intuitions to argue against a metaphysical position…).