Cartels using 'horse slaughter pipeline' to smuggle illegal drugs

Drug cartels are utilizing "the horse slaughter pipeline" to smuggle illicit substances and traffic humans across the southern border—a crisis directly impacting Southern California. Actress and horse sanctuary founder Dawn Olivieri (Yellowstone) and Tawnee Preisner of Horse Plus Humane Society joined FOX 11 to expose how these operations work and the severe health risks involved.