Some ethicists and philosophers say economic sanctions should be subject to the same moral scrutiny given to the use of military force and should require the same level of ethical justification as acts of war.

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.

Science and religion are sometimes at odds over the environment, but one prominent biologist is pleading for both to work together in order to protect the earth's biodiversity -- the many species of plants and animals that scientists say are at risk. E.O. Wilson is the author of a recent book, THE CREATION. He spoke with Bob Abernethy.