Why?

3 seconds sound clip from the Dr. Strangelove movie soundboard.

You can hear this line at 00:27:22 in the Blu-ray version of the movie.

Quote context

[...]

- You see, the planes were holding at their fail-safe points when the go code was issued.

- Now, once they fly beyond fail-safe, they do not require a second order to proceed.

- They will continue until they reach their targets.

- Then why haven't you radioed the planes countermanding the go code?

- Well, I'm afraid we're unable to communicate with any of the aircraft.

- Why?

- As you may recall, sir, one of the provisions of Plan R provides that once the go code is received, the normal SSB radios in the aircraft are switched into a special coded device which, I believe, is designated as CRM 114.

- Now, in order to prevent the enemy from issuing fake or confusing orders, CRM 114 is designed not to receive at all unless the message is preceded by the correct three-letter code group prefix.

- Then do you mean to tell me, General, that you will be unable to recall the aircraft?

- That's about the size of it, sir.

[...]