I finally came up with the plot for my pig monster movie (thanks for the title, Dr. S!):
A secret government project in the Nevada desert is breeding genetically enhanced super-pigs to guard America's borders from Islamic extremist terrorists. The super-hogs are more intelligent and built to withstand even the most extreme desert conditions (pigs can't normally live in the desert because they need to wallow in mud). Unfortunately, now there is nothing to stop the uber-porcines from taking over the whole United States. They escape and mate with the existing wild pigs, sowing destruction by spreading e. coli and uprooting our infrastructure with their snouts.
Come on, aren't there any aspiring filmmakers out there willing to make this idea a reality?
Now playing: Generation X - Ready, Steady, Go