A circle-packing visualization displays terms associated with right-wing dogwhistles, with circle size reflecting each term's weight. Clicking a circle zooms into it and opens an overlay presenting the term's origin, meaning, dogwhistle usage, and a related quote. The implementation uses d3.pack and d3.hierarchy to compute the layout, SVG circles with randomized red fills, and D3 transitions to animate the zoom effect. Data comes from a local data.json file containing the term descriptions.