When Mexico signed the North American Free Trade Agreement with Canada and the United States, it had high hopes for a bright new future. It was counting on massive new investment to help boost its economy and improve the lives of its many poor people. But 12 years later that dream of prosperity has all but vanished. In this News in Review story we'll examine why the promise of NAFTA failed to materialize. We'll show you what went wrong, and why life for so many Mexicans is harsher than ever.