Marco Werman speaks with Steve Berlin of the band "Los Lobos." The band is known for its electric guitar sound. But Los Lobos also has a softer, unplugged side to its music -- and Berlin says that's a key part of the band's identity.

For today's Geo Quiz we asked you to identify the Mexican city that shares a name with North America's first distilled fermented drink. The answer is Tequila.

If you're a US soldier and you're attempting to traverse the mountains of Afghanistan no modern form of transportation will do. That's why the US Army has a special field manual detailing the care and feeding of pack animals. The World's Alex Gallafent has been studying the manual and has this report.

One of the differences between human beings and other primates is that human beings are capable of making weapons. Not necessarily, say some US researchers in Senegal. They saw a young female chimpanzee make a weapon and use it to kill prey. Host Marco Werman gets the story from one of the researchers, Jill Pruetz who is at Iowa State University in Ames, Iowa.

Where in the world will we go today?

The World's Aaron Schachter reports on an Israeli plan to build a system of roads and tunnels in the West Bank. The Israeli government says the system is meant to facilitate the movement of Palestinians who feel cut off by the construction of Israel's security barrier. But many Palestinians say it's just another way for Israel to take their land and destroy their livelihoods.

Sexual violence against women has never been readily discussed in Iraq. However, after two Sunni women accused Shiites of rape, and an American serviceman was sentenced to 100 years in prison for the rape and murder of an Iraqi girl, sexual violence against women is fueling more sectarian violence. Host Marco Werman gets more on the story from Borzou Daragahi, the Los Angeles Times bureau chief in Baghdad.

Anchor Marco Werman interviews the authors of a new graphic novel about a young girl's coming of age in Ivory Coast.

Anchor Marco Werman speaks with the BBC's Charles Havilland about a large demonstration today in the Afghan capital Kabul. 25,000 Afghans converged on the city's National Stadium to demand a blanket amnesty for former military commanders accused of war crimes.

Dick Cheney today expressed concerns about China's military build-up. The Vice President also questioned whether North Korea will follow through on its commitments in a recent nuclear deal. The World's Matthew Bell reports.

The United Nations chief nuclear inspector has accepted an invitation from North Korea to discuss how Pyongyang's nuclear weapons program is to be shut down. Anchor Marco Werman talks with Melissa Fleming, spokeswoman for the International Atomic Energy Agency.