Charlie LeDuff and the boys are back on the road - crossing the border at McAllen, Texas into one of the most dangerous cities in the world - Reynosa, Mexico. It's where warring drug cartels and low wages are a way of life. And it's where U-S plants moved for cheap labor after the North American Free Trade Agreement opened up the borders twenty years ago. As Charlie shows us - NAFTA isn't living up its promises.
