VAN STATTEN: I thought you were the great expert, Doctor. If you're so impressive, then why not just reason with this Dalek? It must be willing to negotiate. There must be something it needs. Everything needs something.

DOCTOR: What's the nearest town?

VAN STATTEN: Salt Lake City.

DOCTOR: Population?

VAN STATTEN: One million.

DOCTOR: All dead. If the Dalek gets out, it'll murder every living creature. That's all it needs.

VAN STATTEN: But why would it do that?

DOCTOR: Because it honestly believes they should die. Human beings are different, and anything different is wrong. It's the ultimate in racial cleansing and you, Van Statten, you've let it loose!