- Concert hall attack dents Putin’s tough image. He tries to use it to rally support for Ukraine warThe Associated Press
- US warning to Americans about imminent attack in Moscow proves prophetic 2 weeks laterFox News
- Screams and Blank Stares of Shock: Horror at a Russian ConcertThe New York Times
- Moscow concert venue shooting latest: Live updatesCNN
- Opinion | Why did Putin brush off terrorism warning? – The Washington PostThe Washington Post