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The CDC knows the truth.judging from the ease and even pride with which public health officials now confess their wrongdoing, it's business as usual. Kahn, each dollar spent on high-risk populations prevents 50 to 70 times as many new infections as the same money spread out among low-risk groups. As early as 1987, Centers for Disease Control officials knew that AIDS was likely to remain a disease of gay men and inner-city drug users.

The CDC knows the truth.