Originally Posted by
mickjoebill
There are no circumstances where police in USA UK or Oz, can lawfully demand that you delete your video on the spot.
In general it is not the taking of videos that is a legal issue, it is publishing or distributing them where the law kicks in to protect the subject.
There are definitely places where taking photographs and videos is prohibited. Certain areas in airports are covered by that prohibition.
While you may be right that the police cannot compel you to delete the photos and videos, they are able to arrest you and confiscate your camera if you contravene the law that prohibits you from taking the pictures. I view the police demanding you to delete the photo on the spot and then letting you go as equivalent to letting you go with a warning after deciding that you are not a threat.
Having said that, in the specific circumstances discussed in this thread, there are no laws that I know of prohibiting photography in an aircraft. So your statement is true in that instance. You can still get evicted from private property though.