Not only would the wall be needlessly expensive -- Trump says it will cost $8 billion, engineers have said at least twice as much -- but there are far better ways to prevent the flow of undocumented immigrants and drugs from Mexico.
We are already seeing signs that Latin America may unite in condemning the United States if President-elect Donald Trump goes ahead with his plans to build a border wall
What will change? The fees that criminal networks charge to transport people and contraband across the border. Every time the wall goes up, so do smuggling profits.
As more migrants are blocked at the American border and more undocumented immigrants are deported from the United States, border communities in Mexico could be overwhelmed