FORT A.P. HILL, Va., July 25 -- Four adult Scout leaders from Alaska were killed Monday afternoon at the Boy Scout Jamboree in an electrical accident that apparently occurred when a pole from a tent they were setting up struck an overhead power line, officials said. ... Officials said late last night that they expected the jamboree to continue but were not certain whether any adjustments to the schedule or participation might be made. Bob Dries, volunteer chairman of the event's national news and media operation, said: "I would expect the jamboree is going to carry on. Certainly, our sympathy is with the families. It's a sad day. The jamboree is about kids and having fun." ... President Bush is scheduled to address the gathering Wednesday night.