Fair warning: This clip is pretty difficult to watch. Here we have the mother of Sean Smith — a State Department worker murdered by terrorists in Benghazi on 9/11 — pleading with the leaders of this country to tell her the truth about what happened to her son. Her anger is simmering, her anguish is palpable, and her frustration is visceral. Nearly five minutes of absolutely devastating and heart-wrenching television on CNN:

Here’s the worst portion of the transcript:

SMITH: Obama told me, Hillary promised me. Joe Biden was a treasure and a real sweetheart. But they all told me that — they promised me. I told them please, tell me what happened. Just tell me what happened.

COOPER: So you, are still waiting to find out what happened to your son what they know, or even what they don’t know?

SMITH: Right. Officially, yes. I told them don’t give me any bologna; you can keep your political stuff, just tell me the truth. And I still don’t know. In fact, today I heard that he died of smoke inhalation.

COOPER: You don’t know the cause of death?

SMITH: No, I don’t. I look at TV and I see bloody hand prints on walls thinking is that my son’s? I don’t know. They haven’t told me anything. They are still studying it. And the thing that is they are telling me are outright lies. That Susan Rice, she talked to me personally and she said this is the way it was. It was — it was because of this film that came out.