Tires line a paintball field at Watchtower Adventures, a family run business owned by Mark Rice, 32, right, near the scene of a former British watchtower overlooking the border with the Republic of Ireland, Sunday, Dec. 22, 2019, in Jonesborough, Northern Ireland. "No one knows what's going to happen. It's the unknown that's the problem, isn't it? It's the unknown that has people afraid," said Rice. "This whole year was quieter than normal. You can blame lots of different things but a lot of it could be because of Brexit. You don't know how many people would have said, 'oh he's in the north.' And go somewhere else." (AP Photo/David Goldman), APTOPIX