They conduct interviews, keep audio journals, and record the sounds of daily life; usually collecting more than 30 hours of raw tape over the course of a year, edited into documentaries airing on NPR’s All Things Considered. Whether it’s the story of Amanda, a gay teen trying to understand her sexuality, or the story of Juan, who crossed the Rio Grande with his family illegally, these stories offer insight into the mysterious life of teenagers. Sixteen years later, five of those diarists return to chronicle their grown-up lives.