Today, US military commanders in Iraq ordered ethics training for combat troops. That follows allegations that Marines killed unarmed civilians in the town of Haditha last year. Host Marco Werman speaks with former Marine officer Andrew Borene. He also trained Iraq-bound Marines in ethics and cultural sensitivity.

Iraq's post-Saddam army is an work in progress. It's still struggling to provide such basic benefits as health care and survivors' pay. Correspondent Ben Gilbert reports from Baghdad.

Host Marco Werman speaks with the UN Secretary General's Special Envoy for AIDS in Africa, Stephen Lewis, about his hopes for what can be accomplished this week as the United Nations holds a three-day special meeting on HIV and AIDS.

Secretary of State Condoleezza Rice is in Vienna today to talk with European, Russian and Chinese counterparts about how to solve the crisis over Iran's nuclear program. The World's Jason Margolis gives an update on the United States' conditional offer to join Europe in direct talks with Iran.

The World's Quil Lawrence reports that some Iranian minority groups are complaining that the controversy over Iran's nuclear ambitions is a distraction from a much more pressing crisis...human rights.

The World's Aaron Schachter reports on efforts by Palestinian lawmakers to create a unity government between rivals Hamas and Fatah.

Where in the world will we go today?

Today's answer is the Ural River in Kazakhstan. Host Marco Werman speaks with marine scientist Phaedra Doukakis about the environmental threats facing the river's caviar-providing sturgeon population.

For today's Global Hit, host Marco Werman presents the final installment in our weeklong series on musicians' efforts to raise awareness of AIDS. Today's story takes us to Portugal and the Portuguese hip hop group, Da Weasel.