The barrier of separation between the United States of America and Mexico, also know as the Mexican wall or wall of Tijuana, is a security barrier built by the United States along the border on the US-Mexican border. In Mexico, however, it is called the "Wall of Shame". Its goal is to prevent illegal immigrants from crossing the US border. In my opinion is a gesture of strong racism. History teaches us not to make mistakes of the past, but unfortunately this is not happening.