Congressional intelligence committees yesterday got an exclusive look at video footage from the terrorist attack in Benghazi that killed four Americans, including U.S. Ambassador Chris Stevens.

After the hearing, Reuters reports, Senate Intelligence Committee Chairman Dianne Feinstein revealed that the video included footage of the attack from a Predator Drone.

“The film is a composite from a number of sources,” Feinstein said. “It is real-time, it does begin from when the incident, before the incident started, and it goes through the incident and the exodus.”

Gen. David Petraeus, who recently resigned as head of the C.I.A., is expected to testify at a closed door Congressional hearing today.