What a difficult job! In order to write this fine history, the author had to know Mexican history, the history of American immigration policy v. actual practices (which have always differed), as well as the history of the 2,000 mile border itself. Amazingly, Timothy Henderson does it. Bravo!
And what a gift to readers like me who need to gain some gain perspective on our current situation. Among my take-homes: How WWI and WWII fueled the need for Mexican labor in the US, and how once that need abated, how ill-treated those previously needed workers were by us Americans. While the US generally did little for immigrant labor that we can be proud of, it was the turmoil of violence in Mexico and poor economic prospects that fueled the migrations through history and continue to fuel them today. While "getting tough on immigration" has been a proven tactic for American politicians for two centuries, the money on walls and enforcement would be better spent on cooperating with Mexico to help raise standards of living in Mexico. NAFTA, while promising to do that, has done little, benefitting American business interests more than the Mexican workers. Fundamentally, Mexico's low tax collection hinders its ability to build infrastructure and education and the historic gulf between los ricos y los pobres continues. There is hope, of course, but it's a slow process that starts with an understanding of the history and true nature of the challenges. Building border walls, or the threat to, will continue to get unscrupulous American politicians elected, but will fail to address the real issues. The walls we need to help build are the walls of new schools, new hospitals and new Mexican-owned enterprises that pay their taxes to a transparent and just Mexican government.