Battlefield Earth (2000)

Plot hole: The facilities at Ft. Hood have working electricity to power the simulators, projectors, etc. even though it's been 1000 years, with no logical reason for the Psychlos to have kept the facility maintained, and the fact that the Psychlos should by rights have leveled the place when they invaded 1000 years before. Even automatic backup generators would have no fuel after 1000 years dormancy except for a nuclear system, which would still have required regular maintenance over a 1000 year interval to maintain automatic functionality.

Ker: I don't know what you're so down about. You still get to be head of security, which, from what I can tell, is a pretty cushy job.
Terl: Well, I can assure you that I was not groomed since birth to have some cushy job that even a moron like you could perform. While you were still learning how to spell your name, I was being trained to conquer galaxies! To do anything less is a disgrace to my entire family line.

Trivia: John Travolta made the film with Franchise Pictures. A few years after the film, it was revealed in a court case that Franchise had fraudulently overstated the budget of Battlefield Earth by $21 million to scam investors. After losing the case, Franchise filed for bankruptcy, and Travolta fired his manager, who set up the deal with Franchise in the first place.

Question: Why are certain areas of the Earth irradiated? What happened?

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