“The people who are paying the costs, military families, veterans, civilians in Iraq, Afghanistan, and Pakistan—those people deserve to have their story told,” says Professor Catherine Lutz of Brown University.

Watch our discussion of ethical questions raised by the killing of Osama Bin Laden, as well as religious responses to his death and its impact on US relations with the Muslim world.

Look back at excerpts from our conversations with reporters over the past 10 years on religion and its changing role in the world.

As major combat operations come to an end and the US completes a troop drawdown in Iraq, revisit interviews with ethicists, philosophers, scholars, and religious leaders about just war and the moral issues raised by Iraq.

"When mass violence hits a country and tears it apart, it takes a long time for it to repair itself," says human rights activist Eric Stover.

"In a democracy that espouses certain moral values, we need to have accountability," says ethicist Shaun Casey. "It prepares us morally to face the future when we're facing a crisis and pressure to abandon legal and moral precedents that we've observed."

The recent release of four Bush administration memos on US interrogation techniques has intensified public debate about the use of torture. Two ethicists discuss torture and its moral limits in an age of terror.