A world map uses semi-transparent circles to show the geographic distribution of missing migrants, with circle size encoding the total number dead or missing per location. A brushed time-series histogram below the map filters the displayed circles to a selected date range, updating the map dynamically. The visualization is built with React and D3 v5, using `geoNaturalEarth1` and `geoPath` for the map projection, `scaleSqrt` for circle sizing, and `brushX` for the interactive time filter. Data comes from a CSV of migrant incidents sourced from Simplemaps.