The video was edited, in a meeting between Katie Couric and gun rights activists in Virginia, in a way that there was an awkward silence as if the gun activists couldn’t answer a question by Couric. The Free Beacon has more on this:
At the 21:48 mark of Under the Gun a scene of Katie Couric interviewing members of the Virginia Citizens Defense League, a gun rights organization, is shown.
Couric can be heard in the interview asking activists from the group, “If there are no background checks for gun purchasers, how do you prevent felons or terrorists from purchasing a gun?”
The documentary then shows the activists sitting silently for nine awkward seconds, unable to provide an answer. It then cuts to the next scene.