Oklahoma Governor Mary Fallin vetoed SB1142 ((final version link)), the Feral Swine Control Act, on May 20, 2016. The proposed bill allows the hunting of all wild hogs without a hunting license. Additionally, the following, often regulated or prohibited activities, would also be allowed when for hunting wild hogs, also without a hunting license: use of ATVs or other land vehicles to pursue or follow ferile swin; use a vehicle mounted spotlight; and use night-vision equipment or thermal-imaging technology.
Feral swine are deemed invasive species by the United States Department of Agriculture’s Animal and Plant Health Inspection Service (USDA APHIS for a more manageable name) and “cause cause damage to agricultural crops and livestock and threaten native wildlife and habitats” with its income impact estimate alone at $2 billion. SB1142 seeks protect Oklahoma’s agribusiness and natural lands.
Opponents of the bill note that it would make it exponentially easier for poachers and exponentially harder for game wardens to effectively do their jobs in keeping the wildlife ecosystem in Oklahoma in balance and preventing illegal poaching. License free hunting on public land also creates a public safety issue. Moreover, there is nothing to show that hog hunting actually reduces the feral swing population and USDA research shows that controlled hog trapping, done by game management specialists, is the most effective population control system (source).
Personal opinion: this all really highlights the tedious balance of wildlife population control.