Describe the intended audience in the Duck And Cover video from 1951.

The intended audience for the Duck and Cover video from 1951 was primarily school children and their teachers. The video was produced by the U.S. Federal Civil Defense Administration as part of a nationwide campaign to educate the public about what to do in the event of a nuclear attack. The video was shown in schools and other public venues to teach children how to protect themselves by "ducking and covering" in the event of a nuclear explosion. The message was aimed at reassuring children that they could take action to protect themselves and survive a nuclear attack.