Kyle: (to Sarah Connor) Listen, and understand. That Terminator is out there. It can't be bargained with. It can't be reasoned with. It doesn't feel pity, remorse or fear. And it absolutely will not stop, ever, until you are dead.
Dr. Silberman: I see. And this, uh, computer thinks it can win by, uh, killing the mother of its enemy, killing him in effect, before he's even conceived. Some sort of retroactive abortion? Why didn't the computer just kill John Connor then? I mean, why this obsession with the Terminator?
Kyle: It had no choice. Their defense grid was smashed. We'd won. Taking out Connor then would make no difference. Skynet had to wipe out his entire existence.
Dr. Silberman: Is that when you captured the lab complex and found the, uh, what's it called? The time-displacement equipment?
Kyle: That's right. The Terminator had already gone through. Connor sent me to intercept and they blew the whole place.