This episode contains strong language.Terry Albury joined the F.B.I. just before the attacks of Sept. 11, 2001, drawn in by the bureau’s work fighting child exploitation. His role quickly changed after 9/11 however, and he subsequently spent over a decade working in counterterrorism.Around 2015, he began to deeply question his work. “This is not what I joined the F.B.I. to do,” he recalled thinking.His doubts about the bureau’s workings led him to leak classified information to journalists. Today, we hear his story.Guest: Janet Reitman, a contributing writer for The New York Times Magazine. Sign up here to get The Daily in your inbox each morning. And for an exclusive look at how the biggest stories on our show come together, subscribe to our newsletter. Background reading: Here’s Janet Reitman’s profile of Mr. Albury, the first F.B.I. special agent since Robert Hanssen in 2001 to be convicted under the Espionage Act.For more information on today’s episode, visit nytimes.com/thedaily. Transcripts of each episode will be made available by the next workday.