Line in the Sand: A History of the Western U.S.-Mexican Border by Rachel C. St. John

This book gives a concise, yet informative history of the border between the U.S. and Mexico, especially between El Paso and the Pacific Ocean. In so doing, it shows how different people and governments use the border--not just to control immigration, but also to, at times, challenge state sovereignty, collect revenue, avoid customs duties, gain a military advantage, and police morality. Indeed, the idea of fencing the border came late. In the conclusion, St. John lays out her cards: she believes that the border fence is not the best solution to the challenges of illegal immigration, and that the U.S. and Mexico should work together, along with the transnational community, to come up with a more flexible method of policing the border. I also learned more than I ever knew about the Mexican Revolution. A well-written and thought-provoking book.