After reading this thread I might not agree woth you guys. If I read this right the aircam aircraft was getting a shot of the crowd but never crossed the runway, unless it is a ultra wide runway.
you said this made you angry. As a CD you can never get angry. If you become angry then you become one of those fun police guys and no one respects the fun police.
you did not give all the information nor a video link to the aircam footage. Video always tells the truth. If you get angry performing the CD duty then you might be correct by not putting yourself in that role.
I would like to see the video to see what happened. The one radio glitch / hardware thought would also apply flying over the runway or next to the runway as well. There are many videos on mishaps like that.
Crash99