Standing in a park across the street from Western Market in Northwest D.C., John Caffo and Jac Winters scrutinized a series of holes next to the concrete sidewalk. This video is no longer available.
Dragging the weighted black bait box out from the brush with his boots, Ryan Campbell wiped a few beads of sweat from his forehead. The 30-year-old service technician for Rose Pest Solutions was about ...