Inbound to Kennedy in the early '60s. Canarsie approach. Aircraft lined up on the inbound radial to keep 210 knots.

Controler:
"American 123, what's your speed?"

American 123:
"210."

Controller:
"Scandinavian 456, what's your speed?"

Scandinavian 456:
"210."

Controller:
"Air France 789, what's your speed?"

Air France 789:
"210."

[Silence for a while. Then ...]

Controller:
"One of you is a #*@! liar!"

Björn Ekberg
via e-mail