FILE - In this June 17, 2014, file photo, a wildlife trapper, walks past damage from feral hogs that happened overnight while foraging near one of his traps in New Orleans. An exploding population of hard-to-eradicate “super pigs” in Canada is threatening to spill south of the border, and northern states like Minnesota, North Dakota, Montana are taking steps to stop the invasion. (AP Photo/Gerald Herbert, File) JUNE 17, 2014, FILE PHOTO
