maybe they want to protect the US with a huge force field or EM dome or shield and the wall will be a big part of it. inside the wall or nearby could hold the technology to prevent missiles, drones, migrants, invasions
maybe they want to protect the US with a huge force field or EM dome or shield and the wall will be a big part of it. inside the wall or nearby could hold the technology to prevent missiles, drones, migrants, invasions