Now read this report from "No escape rape U.S. prisons", and remember that blacks are 10 times more likely to be HIV positive than whites:

"According to CDC report authored by Dr. Robert Greifinger, formally the Department of Correction's chief medical officer, and cited by Fox Butterfield in a New York Times article ["Infections in Newly Released Inmates Are Rising Concern" dated January 28, 2003], an inordinate number of inmates are leaving prison with one infectious disease or another. In 1996 alone, 1.3 million releasees had hepatitis C; 155,000 had hepatitis B; 12,000 had tuberculosis; 98,000 had HIV; and 39,000 had AIDS. Presumably, the numbers for 2003 are considerably higher."