Quote: "The research could one day provide a way for police or the military to assess the risks of entering a room before actually breaking down the door and st

Quote: "The research could one day provide a way for police or the military to assess the risks of entering a room before actually breaking down the door and storming their way inside, using nothing but a small crack in the wall or a gap around a window or doorway." This is ladders and walls situation. And for this technique to be rendered useless the antidote already exists. Criminals all they have to do is start using vantablack - https://en.wikipedia.org/wiki/Vantablack https://en.wikipedia.org/wiki/Vantablack