PBS NewsHour examines a rebound in HIV infection among sex workers and other marginalized “key populations” — including “injecting drug users, men who have sex with men, inmates and other groups in which HIV rates have moved against the global trend.” The news service writes, “[E]xperts with organizations as diverse as the [WHO] and Human Rights Watch agree that government officials must do more to support these ‘key populations’ — no matter how illegal their activities may be — if they want to see an AIDS-free generation within their borders anytime soon.” The news service adds, “Halting the spread of HIV among these key populations comes down to a series of calculated risks for both governments and the individuals themselves,” and PBS provides in-depth examples of efforts to prevent and treat HIV/AIDS among these groups in Tanzania (Kane, 11/5).