- “It seems like just yesterday”: U.S. marks 21st anniversary of 9/11 attacksCBS News
- 9/11 terror attacks reverberate as US marks 21st anniversaryThe Associated Press
- Remembering 9/11 on 21st anniversaryNew York Post
- 9/11 anniversary underscores unfinished business at DHSThe Hill
- POLITICO Playbook: Remembering 9/11, 21 years later- POLITICOPOLITICO