When the main character Harry is recounting his phone conversation to Landa, she asked him to repeat the launch code and then mentions the Rand Corporation and how someone who works there could know something about the launch code. The Rand corporation was a think tank formed in 1948 to advise the United States government on national security issues. Their most well known contribution being the doctrine of Mutual Assured Destruction (MAD) during the cold war. See more
Okay, well I answered the phone because it was ringing, and the guy he just started yelling, 'Dad! Dad! It's happening! The Big One! We're locked in! Thor Arthur 66DDZ.'
Wait a minute! Say that last part again!
It's Thor, Arthur, 66DDZ. And then he started going on 'Oh my God! We shoot off our wad in 50 minutes, you're gonna get it back in an hour and ten!' And then I said something, and he realized I wasn't his dad. And so I asked him if it was a prank, and he went 'A prank? Oh God, a prank?' ...