I have no hesitation in filming, when I suspect "foul play", and will gladly expose those players that are taking advantage of the game by switching sides to gain a temporary tactical advantage.
I just have to ask... Why film, what do you expect to gain from filming a suspected spy? What are you going to do, have a cartoon firing squad?
Seriously isn't a tempoary tactical advantage just that,,, temporary? The practice of and hand wringing over spying is one of the biggest Geek Confirmations in AH