Mbeki Out; Manto Stays

No silver lining. Eleven South African government ministers have resigned in solidarity with ousted President Thabo Mbeki. Alas, Health Minister Manto Tshabalala-Msimang is not among them. You'll remember she infamously advocated beet root and garlic for the treatment of HIV and engineered the removal of her widely admired deputy minister.

Global Health Corps? Karen Grespin at Harvard University in Cambridge considers the age-old debate of training locally vs. importing volunteers to beef up health care systems in developing countries.

Good intentions. Jon Shaffer at Northwestern University in Chicago has "seen the danger of irresponsible medical 'voluntourism' while working in Ghana."