Episode 1 Script Extract?

On set reporters have managed to get what is claimed is an extract from episode 1 featuring a section of conversation overheard between River and Canton, the character played by Mark Sheppard.

Canton: "Stop! Don't move!"


River: "There are loads of them, They're everywhere"

Canton: "America is being invaded!"

River: "America was invaded a long time ago, America is occupied"

Canton: "Don't move! There's no way out!"

River:  "Oh really?"

Sounds exciting. Also, Cantons full name is Canton Everett Delaware III accoridng to PopCultureZoo