Washington Guard Airmen Provide Support to Local Authorities in Oso Mudslide Published March 28, 2014 By . . -- Washington Air National Guardsmen methodically make their way through the mud and wreckage left behind by Saturday's mudslide in Oso, Wash. More than 70 guardsmen have been activated to support the search and rescue efforts. (Photo by Spc. Matthew Sissel, 122D PAOC)