Talk:Wall of Light/@comment-3410662-20130117150806

Can someone link the document where they refer to 'reversing the wall's polarity?' It seemed to me that the wall was designed to recognize certain people with that scanner thing and that those people would be able to pass through unharmed, but that others wouldn't be recognized by the scanner and therefore wouldn't be safe. The game says that you have to put your hand on something while the wall's being checked up on (I haven't played through that mission in a while so that's a rough paraphrase), but I don't think it says anything about reversing polarity.