Video Transcript

Barry Black: I'm Barry Black. I'm a retired master bomb technician with the FBI. I retired after a little over 31 years in the Bureau. 

This was really the first bombing case I worked. So I arrived on scene. I got as close as I could without getting into the debris field and started doing what we're trained to do which, is an initial assessment to try to determine if it was a bombing or in fact a plane crash. And of course the large crater and the debris field are immediate indications. 

This is absolutely a group effort. I was doing my small part like every everyone else.

We've taken the lessons learned from these unfortunate events to ensure that our response is more rapid in the field.