North Korean soldier picked up by South Korean troops after being spotted by thermal imaging
                                
                                
                                    (Newser) -
                                    Although it's common for North Koreans to try to make a run for the South, what's not as common are defections across the Demilitarized Zone, which is littered with guards, landmines, barbed wire, and other barriers. But that's apparently what a North Korean soldier did this week,...