Anchor Lisa Mullins gets reaction to President Obama's speech on Guantanamo from Pulitzer prize-winning journalist and author Ron Suskind.

The World's Katy Clark reports that President Obama today defended his plans for closing the Guantanamo Bay prison camp.

Today on The World: President Obama defends his plans for closing the prison camp at Guantanamo; Mexico considers its own bailout for Detroit's big three automakers and their Mexican operations; And a conversation with the American writer who tipped off the current expenses scandal rocking the British Parliament.

For today's Geo Quiz we were looking for the birthplace of surrealist painter Rene Magritte. The answer is the city of Lessines, in the province of Hainaut in Belgium.

Anchor Marco Werman speaks with Yusef Islam, the singer formerly known as Cat Stevens, about his return to the music that first brought him fame.

When is a potato snack not a potato snack. What is it to be a potato, or to hold the quality of potatoness? The World's Marco Werman and Alex Gallafent do junk food philosophy.

Our daily geography quiz.

The World's Katy Clark reports on a program that aims to prepare future aid workers for the harsh realities of humanitarian work by exposing them to a simulated refugee crisis. The exercise takes place in the woods of Massachusetts.

Preparing aid workers for dangerous missions

Audio Slideshow: building a latrine

Anchor Marco Werman speaks with United Nations humanitarian chief John Holmes about the conditions in Darfur since the expulsion in March of more than a dozen international aid groups by the Sudanese government. Holmes travelled to Darfur this month to see how people there following the expulsions.

Argentine President Cristina Fernandez de Kirchner is turning to desperate measures to maintain power as her approval ratings plummet in the run-up to midterm elections. Correspondent Ian Mount has details.