Agatha: Can you see?
John Anderton: They set me up.
Dr. Solomon: Now, you understand I can't just give you new irises. Because if I do, the retinal scans will read the scar tissue, alarms will go off, and large men with guns will appear.
John Anderton: Why don't you cut the cute act, Danny boy, and tell me what it is you're looking for?
Danny Witwer: Flaws.
John Anderton: There hasn't been a murder in six years. There's nothing wrong with this system it is.
Danny Witwer: Perfect I agree, but there's a flaw. It's human.
John Anderton: Why'd you catch that?
Danny Witwer: Because it was going to fall.
John Anderton: You're certain?
Danny Witwer: Yeah.
John Anderton: But it didn't fall. You caught it. The fact that you prevented it from happening doesn't change the fact that it was going to happen.