How South Africa, the Nation Hardest-Hit by HIV, Plans to "End AIDS"

Nearly one in five people infected with HIV globally lives in South Africa, and only half of them are on treatment. But the nation has made major strides against the virus in recent years and now is aggressively implementing a plan to end the epidemic. Pulitzer Center grantees William Brangham, Jason Kane, and Jon Cohen report on this effort in the final installment of their PBS NewsHour series "The End of AIDS?"