North Korea accused the South of tampering with a border marker on Wednesday and warned of a possible clash along the heavily fortified frontier. The warning comes as South Korea’s relations with the North are at one of their lowest points in years. A day earlier, the two Koreas held their first official dialogue in more than a year. But the meeting ended in 22 minutes, during which North Korea told the South that if it wanted to continue to run factories in a joint industrial complex in North Korea, it should pay more for the North Korean labor. Full Story