How come the Krauts knew about that stove, Security? And the tunnel?

4 seconds sound clip from the Stalag 17 movie soundboard.

You can hear this line at 00:19:37.611 in the Blu-ray version of the movie.

Quote context

[...]

- There will be no Christmas trees, but there will be delousing with ice water from the hoses. Dismissed!

- Guten morgen, sergeants. We will remove the iron stove, the one that was camouflaging the trap door.

- These Nazis ain't kosher.

- Yeah, you can say that again.

- I'm tellin' ya, Animal, these Nazis ain't kosher.

- I said you could say it again. That doesn't mean you have to repeat it.

- Private property, bub.

- How come the Krauts knew about that stove, Security? And the tunnel?

- How come you can't lay down a belch around here without them knowing it?

- Look, if you don't like the way I'm handling this job, go get...

- Kill it, Duke. It's got us all spinning.

- I just want to know what makes them Krauts so smart.

- Maybe they do it with radar. Maybe they got a mike hidden somewhere.

- Yeah. Right up Joey's ocarina.

- Or maybe it's not that they're so smart. Maybe it's that we're so stupid.

[...]