You act like the money is important and fragile. The gov. wastes a hell of a lot more money than that. Plus if Mexico pays for it through tariffs, money transfers, or some other way, then it doesn't hurt the U.S. at all. I'd like to know what effect a wall has on smuggling, though, because that's also a major issue, aside from immigrants entering the country illegally. I don't support Trump because of the wall. The wall is one of my least favorites of his, but I like that he's actually willing to suggest something that other politicans don't dare to. Besides, if America wanted to be 100% sure everything we do will be 100% effective, we'd do nothing, which is exactly what we already are doing.