'They' are Wildlife Services, part of the Department of Agriculture. The Services killed 3,200,000 animals last year in an attempt to control predators so that “people and wildlife can coexist.” It so happens that the predators to be killed are specified by farmers and ranchers.
Richard Conniff wonders why all of these 'predators' need to be killed since they can be thwarted by other means. He sought answers from Wildlife Services but was unsuccessful in getting any information as Services issues information only once annually. That information lists the number killed of each type of animal and the method of killing. This from an agency that costs is over $127,000,000 a year.