Ahead of the anniversary of the September 11 terrorist attacks, Senior Fellow Daniel L. Byman reflects on what has gone well and what has gone poorly in US counterterrorism efforts in the seventeen years since the attacks.

Listen to Brookings podcasts here or on iTunes, send email feedback to [email protected], and follow us and tweet us at @policypodcasts on Twitter.

Editor’s note: This conversation was recorded remotely by phone call