Dario Garcia, who lives in Panama, volunteers to visit people who are HIV-positive to see whether they are taking their medications. Garcia himself is HIV-positive. "I feel alone," he says. "I believe the most support I have now is from others who have been diagnosed."
Jacob McCleland for NPR
A Russian intercontinental ballistic missile is moved during military training in the mid-1990s near Irkutsk, Siberia, Russia. Arms control has been at the center of a decades-long discussion between Russia and the U.S.