 While most of those who defend collective responsibility as a moral construct adhere to this distinction in general, they do not all agree on what counts as an aggregate collectivity in practice. Indeed, there is considerable disagreement among those now writing about collective responsibility (including some who take the above three approaches) about two particular kinds of groups that appear to some to be aggregative groups. One of these kinds of groups is the mob. The other is what Virginia Held calls a “random collection of individuals.” Neither of these kinds of groups has a decision-making procedure in place. Nor do their members show much solidarity. Hence, they are usually rejected as candidates for collective responsibility by many of those who otherwise find the notion of collective responsibility to be very useful. But there are those who put forward both groups as appropriate sites of collective responsibility.