[Harry rears back from the comm screen, looking shocked before he instinctively denies her accusation.]

No! We're just not very public. It's...

[He's never really thought about why they're separate from muggles, just that it's what needs doing. It wouldn't be safe to train wizards in a regular school.]

Well, some people say that we need to be kept secret for our own safety, that mu-, that mundane people would harm us. Others seem to think that if we integrated, we'd loose our culture.