Top intelligence officials showed them the footage as part of hearings on the attack in September on the diplomatic mission in Benghazi.

Senate intelligence Committee Chairman Dianne Feinstein and ranking member Saxby Chambliss say they will hold at least two more fact-finding hearings before a public session to share what they've learned.

Neither would say if they are satisfied with explanations of why the intelligence analysis changed, from reports that a demonstration turned violent, to blaming the attack on terrorists alone.

The senators say they hope to hear more details when ex-CIA Director David Petraeus testifies behind closed doors Friday.

9NEWS asked Senator Udall about the handling of the Petraeus investigation and startling remark the general's mistress made during a speech in Denver.

Watch the video above.