Guest: Martin Plaut, BBC

Guest: Mark Mazzetti, The New York Times

Guest: Jonathan Marcus, BBC diplomatic correspondent

Political instability has put a spotlight on Nigeria, home to Africa's largest oil industry. Militants have recently sabotaged crude exports with series of attacks on drills and supply lines. With Nigeria pumping oil at its lowest rate in 25 years, unease about the global oil supply has increased.

Guest: Thomas Gouttierre, Center for Afghanistan Studies, The University of Nebraska

Guest: Jeremy Bowen, BBC News

Which groups or nations may have bought electronic blueprints for an advanced nuclear weapon? That’s the question for American and international investigators who say the plans for a small nuke were found on the computer network of rogue Pakistani nuclear scientist Abdul Qadeer Khan, who has been under house arrest for the past four years. The Takeaway talks with New York Times reporter David Sanger, who has been following this story for a year.

Guest: Barbara Plett, BBC News

The Supreme Court ruled that suspected terrorists detained at a prison in Guantánamo Bay, Cuba, have the right to contest their detention via U.S. civilian courts. Glenn Greenwald (Salon.com blogger and Bush administration critic) and Jed Babbin (Human Events editor and former deputy undersecretary of defense under President George H. W. Bush) take two views on the decision.

In a 5-4 decision, the Supreme Court has ruled that suspected terrorists detained at a prison in Guantánamo Bay, Cuba, have the constitutional right to contest their detentions in U.S. civilian courts. Human rights lawyer Barbara Olshanski, who argued before the Supreme Court in a 2004 Guantánamo case, dissects Thursday's decision.