Footage. We believe from inside the airport, again, the explosions taking place just about three hours ago. Theres that explosion. So again, the story that is emerging here is one potentially of heroic actions by the security forces. We understand from Richard Engel that one of the Police Officers literally threw himself on one of the bombers. We now have video footage that we believe shows the inside of the airport and the second suicide bomber falling from a shot fired from a security official before detonating his explosives. As you see him detonate, what we assume are some kind of body vest there, theres no one around. There are no civilians around him at that moment. That we believe could have potentially saved many, many lives. Im sorry. Can you hear me . Cal, walk us through where this video comes from. I know we go through a process here at nbc news before we put things on television, but is it social media . Yes. This is coming off twitter. Again, im using the word purportedly