Host Ira Glass Host talks to Paul Gereffi, a letter carrier in Ft. Lauderdale who helped save the life of a stabbing victim who saw Gereffi's mail truck and flagged him down.

For 17 months, New York police officer Adrian Schoolcraft recorded himself and his fellow officers on the job, including their supervisors ordering them to do all sorts of things that police aren't supposed to do. For example, downgrading real crimes into lesser ones, so they wouldn't show up in the crime statistics and make their precinct look bad.