 Here’s one try at explaining this asymmetry (Fischer 1985–86: 267–268): moral responsibility for anything—action, consequence, omission—requires a certain kind of control, though what kind of control is needed may vary depending on the case. Now grant that FSCs show, contra PAP, that regulative control  (§5.1)  isn’t required for responsibility for actions: guidance control is enough (assuming other conditions on moral responsibility are met). When omissions are in play, however, there is no potential object of guidance control, for there is nothing to guide. For omissions, the only kind of control available to satisfy the control requirement is regulative control. No wonder then that FSCs fail to refute PAP-omissions, as these cases remove the only sort of control one could have over an omission.