The Centers for Disease Control and Prevention has acknowledged it has drastically underestimated the number of people becoming infected with AIDS in the United States. The CDC had been reporting 40,000 people get infected each year, but now the agency estimates the figure is 56,000—an increase of 40 percent. The CDC reportedly knew about the increased number of cases since last year but waited to make the announcement until the opening of the International AIDS Conference in Mexico. We speak with Stephen Lewis, the former UN envoy on AIDS in Africa and and co-director of AIDS-Free World, who is taking part in the International AIDS Conference in Mexico City. [includes rush transcript]