Listen: How has terrorism changed since 9/11?

9/11 Memorial Museum Officially Opens
The National September 11 Memorial Museum stands beyond the north reflecting pool in New York City.
Pool/Getty Images 2014

It's been almost 16 years since the 9/11 attack on the World Trade Center. How has terrorism changed since then? How is the US' involvement in the Middle East influencing the situation? MPR News host Kerri Miller talked to former FBI Supervisory Special Agent Ali Soufan about his book, "Anatomy of Terror."

Use the audio player above to hear the full segment.