I have to stand by the comment... the European LARP scene is farther along in developing LARP as an art form, and as a result a lot of experimental LARPs have been done to push the boundaries of what LARP is. I'm pretty sure they'd be right at home with the idea behind your thesis, and wouldn't be surprised to hear that they've been out deliberately running LARPs which deliberately pulled outsiders into the event to blur the lines between what is LARP and what is real life. Politics, as you suggest, is an obvious point of entry into the mainstream, which would allow LARPers to involve outsiders without the outsiders being aware that there actually *is* a LARP going on, until it was over.