Elizabeth Farnsworth reports on how Botswana's government is trying to tackle the crisis, in part three of a four-part series. "Diamonds from mines like this are crucial to Botswana's economy, and as more and more workers ended up sick, Debswana [joint venture De Beers & govt. of Botswana] decided to act. In early March, it announced that company doctors like Kobus Erasmus would begin to provide the full package of life-saving drugs called anti-retrovirals which have saved millions of lives in developed countries. The mining company would pay 90% of patients' costs."..."A high tech laboratory is under construction in Gabarone, which will have the capacity to analyze how patients on anti-retrovirals are doing. It's funded by the government and Harvard with help from Bristol Myers Squibb."