Bombs in Our Midst: Questions Linger After Possible Terror Threats in 3 States
![](https://media.wnyc.org/i/800/0/c/85/1/chelsea.jpg)
Crime scene investigators work at the scene of an explosion on West 23rd St. in Manhattan, Sunday, Sept. 18, 2016.
( Craig Ruttle / Associated Press )
( Craig Ruttle / Associated Press )
Produced by Jack D'Isidoro and Dana Roberson