The 2012 attack on the US diplomatic facility killed four Americans . It has become a political flashpoint over security issues , tactics , response . ` Obviously , we 've talked at length about the fact that we knew there were extremists and terrorists operating in Libya and in Benghazi . Senate committee report notes 15 people associated with FBI probe were killed . Also , people with al Qaeda - related groups participated in the armed conflict .
The 2012 attack on the US diplomatic facility killed four Americans . It has become a political flashpoint over security issues , tactics , response . Senate committee report notes 15 people associated with FBI probe were killed . Also , people with al Qaeda - related groups participated in the armed conflict .