20 Years Of NAFTA The North American Free Trade Agreement went into effect Jan. 1, 1994. Critics of the much-debated agreement had predicted it would result in massive job losses in the U.S., but analysts say NAFTA has had a mixed impact on the economy.

Kayakers head out on the Rio Grande toward one of the international bridges that connect Laredo, Texas, and the town of Nuevo Laredo in Mexico. Raw sewage and animal carcasses float in the water. Neena Satija/Texas Tribune hide caption

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Neena Satija/Texas Tribune

Despite Efforts, The Rio Grande Is One Dirty Border

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