More than 9 in 10 new HIV cases among young men and boys ages 13 to 24 in the U.S. occur among homosexuals and bisexuals, according to a new report by the Centers for Disease Control and Prevention (CDC). The April 25 CDC report, “HIV Among Gay and Bisexual Men,” offers stark evidence of the extreme health risks associated with male homosexual sex, in particular receptive anal sex. Below are some of its findings: — Gay and bisexual men aged 13 to 24 accounted for an estimated 92 percent of new HIV diagnoses among all men in their age group...