The United States is one of the few wealthy countries where commercial surrogacy remains legal. Bans elsewhere in the world, combined with a largely free-market approach at home, have made the US an international destination for would-be parents from around the globe – fuelling the industry’s rapid expansion. But could it all come to an end? Today on The Global Story, we speak to fertility technology reporter Emi Nietfeld about how the US became a global hub for surrogacy – and why a series of high-profile cases is raising difficult questions about the industry.