 Feinberg himself is willing to ascribe collective responsibility to group members for such harm in some cases, although, he makes clear, in doing so we need to shift our attention away from strict liability to a softer kind of social blame on grounds of fairness. He concerns himself with three kinds of cases in particular, namely, those in which large numbers of individuals are independently at fault; those in which the harm is caused by a joint undertaking of numerous persons acting cooperatively, and those in which the harm is ascribed to a particular feature of the common culture which is self-consciously accepted by or participated in by members of the group. Feinberg is willing to accept the possibility of ascribing collective responsibility in all three kinds of cases. But he cautions that we need to proceed on a situation-by-situation basis, since to ascribe collective responsibility in cases such as these requires not only that we locate genuinely shared faults but assess various incommensurable dimensions of individual contributions, including degrees of initiative, importance of assigned task, levels of authority, etc.