The American radar screen quickly confirmed the fact that there was nothing wrong with the British radar...
8 seconds sound clip from the The Day the Earth Stood Still (1954) classic radio play.
You can hear this line at 00:04:11 in the radio play.
Quote context
[...]
- Better give an alarm. Keep it steady, though. May be faulty equipment.
- There was something very gravely wrong forty miles out in space, far above the earth.
- Luckton at Ferris to Baker, Ferris to Baker.
- I have an object at two zero zero thousand feet, four zero zero zero miles an hour.
- They're here! They've come! They're here, they're here!
[...]