Blood

This vies for some of the worst, most useless X-file storytelling. What were they thinking?

We get covert pesticide spraying, chemically induced paranoia, and get this, remote controlled insertion of subliminal messages in electronic devices, apparently timed to perfection. Mulder himself gets a taste of it, but typical for X-file norms, we're meant to read some ambiguity on whether or not 'truth' is really out there or just a state of mind.

What the X-files won't acknowledge but really gives it some power is that Mulder is the viewer, the paranormal fan who pursues all sorts of stories that feed and induce hallucination. This can and should be taken in many directions, but instead we have it reduced to shenanigans.