They made polite small talk, telling each other that they looked well even though they were both sallow and emaciated. Then Dr. Kim inquired about her classmate’s family. Her husband and her two-year-old son had died, just three days apart, she said matter-of-factly. Dr. Kim tried to offer her condolences. “Oh, I’m better off. Fewer mouths to feed,” she told Dr. Kim. Dr. Kim couldn’t decide whether her friend was callous or insane, but she knew that if she stayed in North Korea any longer, she would either be the same, or she’d be dead.