The photo above is of the heavily fortified SONY maquiladora. Infonavit is a Mexican housing authority. Until they can purchase or rent the townhouses, many workers live in colonias like the one shown below. As one can see in the photo above, the colonia residents are not being served by any sewage treatment facility - old or new. The lack of sewer and water service in Nuevo Laredo's colonias makes for a booming business in diarrhea remedies.
Colonia life has some perks, though.
The bus service is good, and the shopping is handy, and the prices are low. The maquiladoras don't pay high wages . The scene above is a flea market. Nuevo Laredo's colonias are horrifyingly crowded, and the squalid shelter one builds there is all one will ever build. So, it is not surprising that many prefer to immigrate to a Texas colonia and build a palace, as is being done in the photo below.