Dr. Jeremy Stone: In the event of an overwhelming breach, the lab is built atop a nuclear device. (He inserts his electronic ID tag into the computer) I've just armed that system. Once it's activated, there's a 15-minute countdown to detonation.
Dr. Charlene Barton: You gotta be shittin' me!
Dr. Tsi Chou: I'm sure the chances of an accident in such a beautifully designed facility are too small to be significant, but if there should be a mistake?
Dr. Jeremy Stone: There is a failsafe plan. Dr. Keene is our odd man. Please insert your card.
Dr. Angela Noyce: Odd man?
Dr. Jeremy Stone: Place your thumb upon the panel. To abort the self-destruct sequence, Bill ID's himself via thumb print and his card. There's a panel like this on every level.
Dr. Charlene Barton: Why Bill?
Dr. Jeremy Stone: The army ran an extensive battery of tests and determined that unmarried males were more likely to make the right choice during a crisis. In our particular case, the right decision is to not prematurely abort the self-destruction sequence.
Dr. Charlene Barton: So you were looking for the man most likely to kill himself, and us? (everyone looks as Keene)
Dr. Bill Keene: Cool.
Dr. Tsi Chou: I feel so reassured.