Suzette Grillot, Joshua Landis, and Rebecca Cruise discuss this week's national elections in Iraq, and the growing ethnic tensions and violence in Western China.

Later, a conversation with historian and geographer Abigail Neely. Tuberculosis and HIV co-infection is one of Sub-Saharan Africa’s biggest health challenges, but she questions how closely they’re related, and how poverty affects the immune system.

USAID U.S. Agency for International Development / Flickr Creative Commons

HIV/AIDS is commonly considered an individual affliction, however Abigail Neely says that HIV/AIDS needs to be considered within the social, cultural, and economic environment of South Africa.

In South Africa, HIV/AIDS is endemic. Neely says that over 30 percent of the population is infected with HIV, however co-infection with tuberculosis is also prevalent.

Looking crisp and official in his khaki-colored sheriff's department polo shirt, Steve Steinhardt says Sheboygan, Wis., is a pretty good place to be a director of emergency services.

"Nothing bad happens here," he says, knocking on wood. Unless, that is, you count the tuberculosis outbreak that struck the orderly Midwestern city of 50,000 this spring and summer.

"I never expected TB to be one of the bigger emergencies I'd face when I got into this field," Steinhardt says.