Today, Wesley leaves the studio – and goes home. He embarks on a journey that involves a car named Khad'ija, a tireless 92-year-old activist and one Chinatown. Last year, President Biden signed a $1 trillion infrastructure bill into law. One part of the initiative especially struck Wesley: the federal government’s acknowledgment that its mid-century push to build a massive highway system had caused suffering. Wesley started thinking about a highway that he sometimes crossed as a kid in Philadelphia: the Vine Street Expressway. When it was built in 1991, he never realized how deeply it had divided and altered the Chinatown neighborhood. What happened to all the people who were living there? How did their lives — and their communities — transform? On today’s show, Wesley returns to his hometown to try to find out. Visit nytimes.com/stillprocessing for photos of Wesley's journey and more info about the episode.