A border wall will do nothing to improve national security or reduce the flow of illicit drugs. It’s only an expensive monument to America’s ongoing issues with racism. We are not at war with Mexico. Mexico is not a threat to the United States. The Mexican people are not harboring terrorists. The vast majority of violent crimes in the U.S. are caused by natural born citizens. Finally, Mexico is the United States’s 3rd largest trading partner. Do we really want to put a wall up when we are trying to renegotiate NAFTA?