Nashville Mayor John Cooper said there is no update yet on a possible person of interest in the city’s Christmas Day bombing near an AT&T facility. Cooper, speaking on CBS News’ “Face the Nation” on Sunday morning, did not answer questions about a person of interest in the bombing. “Well, there’s no update yet, but I think everybody feels like there is a lot of momentum behind the investigation,” he said of a possible person of interest. Infrastructure was the target of the attack—not people, he said, citing what other authorities said. Other questions about the incident will be answered “relatively soon,” Cooper told the network. “Questions will be answered relatively soon,” he added. “We’ve got hundreds of agents on the ground working very hard.” Cooper noted that in the vicinity of the blast, there is a large AT&T telecommunications facility. The vehicle “was parked adjacent to this large, historic …