In Mexico, the despair of migrants faced with the Texan barrier. In recent months, Piedras Negras has become the new migration tension point in America.

From September to December, nearly 1,000 people reached this small town of 150,000 inhabitants every day. But their dream of asylum was quickly shattered against a hyper-secure border: barbed wire, floating buoys with circular saws, containers and patrols, day and night, on land and on the river. The architect of this security… This article is reserved for subscribers. You have 87% left to discover.