Batman: Beautiful, isn't it?
Lucius Fox: Beautiful... unethical... dangerous. You've turned every cellphone in Gotham into a microphone.
Batman: And a high-frequency generator-receiver.
Lucius Fox: You took my sonar concept and applied it to every phone in the city. With half the city feeding you sonar, you can image all of Gotham. This is *wrong*.
Batman: I've gotta find this man, Lucius.
Lucius Fox: At what cost?
Batman: The database is null-key encrypted. It can only be accessed by one person.
Lucius Fox: This is too much power for one person.
Batman: That's why I gave it to you. Only you can use it.
Lucius Fox: Spying on 30 million people isn't part of my job description.