The US authorities have built a wall parallel to the existing one to contain the avalanche of emigrants that has caused the extinction of Title 42. In Mexico they estimate that around 150,000 remained near the border, between Tijuana and Matamoros, more than 3,000 kilometers to the east.
On the US side, the wall that separates the two countries was reinforced in the last hours with a double barbed wire fence. The latest addition is the "robot dogs", new "migratory agents" that seem to escape from a science fiction movie.