That upcoming Grateful Dead reunion concert appears to be DOA. The promoters of the event planned for Aug. 3-4 in East Troy, Wis. have been denied a permit by a county highway committee. Roughly 200,000 fans were expected to show up at the Alpine Valley Music Theatre, but the venue only holds 35,000 people. "We only have 80-some sheriff's deputies," Walworth County Highway Committee Chairman Odell R. Gigante said. "Short of bringing in the National Guard, we just couldn't handle it."