Which, really, Dinah couldn't disagree with. It just sounded like it could be unfair. "They're pretty complicated. Too bad Ms. Whitaker isn't here ny more, she could explain them better... still. There has to be a teacher who'd be able to tell you about them." And pick up on Azula's plans for them, yup. "They even put them on the helmets of some soldiers these days, so their commanders can see what they're seeing when they're far away."