- John Doggett: So which kind of shooting was this? Lucky, coincidental or some third alternative?
- Dana Scully: Well, it's precision marksmanship, that's for sure. These holes line up perfectly with the three victims behind there, which tells me that the shooter was standing right here behind this wall.
- John Doggett: Consequently he wouldn't be able to see what the hell he was aiming at.
- Dana Scully: Unless he could see. The light our eyes can register is only one small portion of the electromagnetic spectrum. Other wavelengths from infrared to gamma have other properties. X-rays, for instance, can pass through solid objects.
- John Doggett: Walls, for example. So, you saying this guy used some kind of X-ray machine.
- [Scully just stares at him]
- John Doggett: Wait, you... you are not saying that this guy has X-ray vision?
- Dana Scully: I am *remarking* that these wavelengths exist and the only thing that is stopping us from seeing them, if you will, is the biochemical structure of our eyes. I am *conjecturing* that if this structure was somehow different we'd have the ability to see things that we don't.
- John Doggett: [Doggett leans over and whispers in her ear] Call in Clark Kent.
- Dwight Cooper: The eyes are the windows of the soul. They tell you everything you need to know about a person.