Mulder and Mr. X in “Sleepless”

[Mr. X hands Mulder an envelope] What's this?

Data from a top secret military project. Born of the idea that sleep was the soldier's greatest enemy.

Grissom was conducting sleep deprivation experiments on Parris Island?

Not deprivation. Eradication.

Why?

Why else? To build a better soldier. Sustained wakefulness dulls fear, heightens aggression. Science had just put a man on the moon. So now they looked to science to win a losing war.

And Willig and Cole were the lab rats.

Lab rats with the highest kill ratio in the Marine Corps. Four thousand-plus confirmed kills for a thirteen-man squad.

You think Cole's behind what's happening now?

I'm not here to do your thinking, Agent Mulder. All I know is, that Augustus Cole hasn't slept in twenty-four years.