I don't know. I think we may have been seen getting into the taxi.

5 seconds sound clip from the The Day the Earth Stood Still (1954) classic radio play.

You can hear this line at 00:45:02 in the radio play.

Quote context

[...]

- It's no good. It's too late. I've got a taxi outside. Hurry.

- Attention, Zone Five! Attention, Zone Five! Man and woman observed entering taxi at One-six-one-five M Street, Northwest.

- Man is probably Klaatu, alias Carpenter.

- Establish roadblocks according to Plan Baker and maintain station.

- Remain on radio alert until further orders.

- I don't know. I think we may have been seen getting into the taxi.

- Where can you go?

- I'm sure Barnhardt can arrange to hide me until the meeting tonight.

- Where is it going to be?

- At the ship.

- Now, look there... army cars.

- Full troops in full gear.

- The alarm is out all right.

- It's only a few more blocks to Professor Barnhardt's.

- I'm worried about Gort. I'm afraid of what he might do if anything should happen to me.

[...]