GRAND FORKS, N.D. -- Hundreds of volunteers streamed into the University of North Dakota's hockey arena early today to join the search for Dru Sjodin, a 22-year-old UND senior missing since Saturday night. The volunteers were given identification badges and assigned to teams to search for Sjodin, who police believe may have been abducted. ``I was up all night, because I've just been itching to get out and do this,'' said Jerrod Arneson, one of the volunteers. ``You never think something like this would happen here, and when it does, you want to do something.'' Michelle Vogt said she lived...