Green screening is where you leave a wall or screen green so that editors (citizen or professional) can add in a background. Newsreaders do it with a London Big Ben picture, in movies its to add in CGI Monsters.
So was McCain’s green screen deliberate? Or accidental? Here’s one:
So, without having to reply personally to the tweets, facebook wall questions, myspace postings and youtube rantings of every single American, McCain was able to give them something interactive to play with. Didn’t win him the election though, did it?