4-181. Providing other designated domestic support encompasses preplanned, routine, and periodic support not related to disasters or emergencies. Often, this is support to major public events and consists of participatory support, special transportation, and additional security. Examples are NSSEs such as Olympics, inaugurations, or state funerals. Some missions may involve designated support requested by a federal or state agency to augment its capabilities due to labor shortages or a sudden increase in demands. Such support may extend to augmentation of critical government services by Soldiers, as authorized by the President and directed by the Secretary of Defense. For example, skilled Soldiers replaced striking air controllers in the Federal Aviation Administration until newly hired civilians completed training. Soldiers have moved coal during strikes or even operated key commercial enterprises when national security considerations justified such extreme action.