Plenty of money has been sent.
Mexico has a good idea. In the past MUCH of the money which went to Guatemala ends up in deep pockets of people government leaders. It is real sad. But I like the Mexico idea, and though it may cost a little, I think the same NAFTA IDEA originally was to build mostly highways to get goods and services to the 28 million consumers in Mexico City. I have been at the borders of Central America, and they need some 4 lane highways to get their avacados to American markets as well as roads for them to import toilet paper from Wisconsin. Building a road, would really help the infrastructure, open markets and might stem some of the flood of immigrants to the border.