(Portland, OR)  --  Police are investigating after a storage shed at Portland's Grant High School was vandalized.  Authorities say someone spray-painted a swastika and a racial epithet on the shed, sometime before seven a.m. yesterday.  Police officers who responded to a call about a break-in at the school spotted the vandalism.  Anyone with information on the incident is asked to call the Police Bureau's Youth Services Division at 503-823-4849.