Drug Use Is Detectable on Your Fingerprints
Should law enforcement be able to test them?
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Tobias Schwarz / Reuters Threading a City With Gunfire Sensors Might Not Make It Any Safer
Amid record-breaking gun violence, Chicago’s police are expanding the use of an innovative technology—with little evidence that it helps.
Mathew Sumner / AP Lowering the Age for HIV Prevention
The risk of infection is highest among among gay black men in their teens—but Truvada, the drug otherwise known as pre-exposure prophylaxis, is still available only for people 18 and older.
Chip East/Reuters A Promising HIV Vaccine in South Africa
After encouraging early results from a small study, clinical trials will begin in January.
Zambia's Anti-Gay Obsession Is Worsening Its HIV Epidemic
One prominent traditional chief recently called for "gay people to be caged."
