The Guardian's Adam Gabbitt on the Guardian

The emergence of the so called super pig, a result of crossbreeding domestic pigs with wild boars only adds to the problems the US faces from the swine invasion. Wild pigs have been antagonizing flora and fauna in the US gobbling up crop spreading disease and even killing deer and elk. North America is also facing a new swine related threat as a giant quote incredibly intelligent, highly elusive beast capable of surviving cold climates by tunneling under snow is poised to infiltrate the north of the country. A pig is a quote mixing vessel where they don't carry viruses like that capable of carrying transmittable flu which are transmittable to humans.