USAR (Urban Search And Rescue) is an organization who is dedicated to the location, extraction from dangerous sites and subsequent stabilization of people who have been in the site of a building collapse.
This organization helped victims during the Oklahoma City bombing of 1995 and also made great efforts during the terrorist attacks of September 11th, 2001. Among these efforts were bringing relatives of the victims of the Oklahoma City bombing to New York City in order to provide grief counseling after the terrorist attacks of 09/11/2011.