Features include interactive map, in-depth stories, and more.Download now. »
The week's top five must-sees,
delivered to your inbox.
In sociology and anthropology, an action group or task group is a group of people joined temporarily to accomplish some task or take part in some organized collective action. As the members of the action group are brought together on a single occasion and then disband, they cannot be regarded as constituting a full-fledged social group, for which they would need to interact recurrently in accordance with their social identities. (via Freebase)