I emerged from the subway at the agreed-upon rendezvous point and straight into a rainstorm. Droplets of water immediately began spilling down my face, making it a challenge to scan the busy street around me for my contact. Then I spotted her across the street, taking shelter in an empty coffee shop. How interesting, I thought, that crowds of hurried South Koreans were unknowingly shuffling by one of the greatest North Korean smugglers of our time.