MIRAN SHAH, Pakistan - Pakistani security forces backed by helicopter gunships killed at least 15 suspected Taliban sympathizers Friday in the latest flare-up of violence near the Afghan border, the Pakistani army said. One soldier also was killed. The top army spokesman described the continuing bloodshed in the North Waziristan tribal region as "disturbing" and said efforts to control it were costing the Pakistani military "heavily." "Eighty percent of the people in the area are sitting on the fence and watching for which side buckles, either the government or the militants, and they will go with the winner," Maj. Gen....