The first American war crimes tribunal since World War II is taking place in Guantanamo Bay, Cuba. On trial is Osama bin Laden's driver, Salim Ahmed Hamdan. Defense lawyers say the poor Yemeni took the job only for its $200-a-month salary, but prosecutors say Hamdan was a willing recruit, aiding al-Qaida in its militancy efforts.

Lawmakers on Capitol Hill are scheduled to take up a proposed bailout of mortgage giants Fannie Mae and Freddie Mac. It’s a bill that has President Bush and congressional Democrats seeing eye-to-eye.

Since 2001, when a federal funding freeze crippled research into the use of human embryonic stem cells to treat a host of congenital and degenerative conditions, molecular biologists have searched for a viable alternative. Now, they may have found a way. By reprogramming adult skin cells, researchers have produced stem cells that bypass the political and ethical stumbling blocks. But all is not perfect. In recent studies, the cells produced tumors in mice.

The future Donald Trumps of the world will soon need the help of a palm reader to ascend the corporate ladder. In an effort to finger cheats, aspiring CEOs will be screened by a high-tech identity device, known as a “palm vein” scan, before taking the Graduate Management Admissions Test (GMAT) as early as this fall.

As credit card companies continue to descend upon college campuses, Congress is threatening to make it more difficult for students to qualify for credit. But is Congress protecting students from debt or is it infringing on students’ rights?

Guest: Stephen Erlanger, The New York Times

Jason Burnett, a former Environmental Protection Agency official, told the Senate's Environment and Public Works committee that the White House pressured the EPA in 2007 to deny climate regulation that would have required a reduction in greenhouse gas emissions from cars in California. Burnett's testimony contradicts earlier statements from EPA chief Stephen Johnson, who said the denial was solely his decision.

Guest: Caitlin McNally, documentary filmmaker

Guest: Mark Duvall, the program manager for The Electric Power Research Institute. He's in San Jose, Calif., for Plug-In 2008, a conference for advances in technology and policy for hybrid-electric vehicles.

The 500th issue of The Uncanny X-Men goes on sale this week, 45 years after Stan Lee and Jack Kirby debuted the mutants Cyclops, Marvel Girl, Angel, Beast and Iceman.

A 21-patient study has shown that the drug abiraterone can stop the testosterone that feeds prostate cancer. A larger international clinical trial is underway to test the drug before it can be deemed a "miracle drug." Also, Dimebon, once used as an antihistamine, has been found to improve cognitive abilities for Alzheimer’s patients, though researchers aren't yet sure how.