texts: What do you mean, walked?
labels: Your aliens, Agent Mulder, your little green men, first landed here millions of years ago. Those that didn't leave have been laying dormant underground since the last Ice Age. In the form of an evolved pathogen. Waiting to be reconstituted when the alien race from which it came returns to colonize the planet. Using us as hosts. Against this we have no defense. Nothing but a weak vaccine.  Do you see why it was kept secret? Why even the best men -- men like your father -- could not let the truth be known?