Greece spent a decade working to become a full member of the European Union. Now it appears it's doing its best to get thrown out. At a summit meeting in Brussels last night, Euro leaders stepped up contingency planning for a possible Greek exit from the euro zone. Meanwhile, Europe's leaders are struggling to overcome their differences on how to resolve the EU's debt crisis. Joining us is Matthew Price, Brussels Correspondent for our partner the BBC.

Ovarian cancer is called the silent killer. Most women don’t receive a diagnosis until the disease has spread, until the chances for survival have dwindled. Once diagnosed, the treatment might be just as bad as the disease, as Dr. Vivian Bearing, the main character in Margaret Edson’s play “Wit," explains: "I am in isolation because I am being treated for cancer," she says. "My treatment imperils my health. Herein lies the paradox." Like Vivian Bearing, Susan Gubar is a professor of English, coping with ovarian cancer. Yet Professor Gubar's story of diagnosis and treatment is quite different from the one Margaret Edsons chronicles in "Wit."

The son of Bo Xilai, who attends Harvard University in Cambridge Massachusetts, has gone missing. This latest development comes after Xilai was ousted from the Communist Party's inner circle and his wife implicated in the murder of a British businessman. We're joined by Evan Osnos, a writer for the New Yorker.

The violence in Syria has continued in spite of the ceasefire which came into effect on Thursday, and the first members of a United Nations truce monitoring mission which have arrived in the Syrian capital, Damascus. Fighting was reported between government forces and rebels in the city of Homs and unverified video posted on the internet showed the Khaldiyeh area of Homs being heavily shelled. Kieran Dwyer, from the UN's Department of Peacekeeping Ops, outlines what's expected of the monitors in the coming days.

A new poll released by the Pew Survey looks at how Latinos identify themselves. We'll talk about the different identities we adopt with regard to our race with Mark Lopez, associate director of the Pew Hispanic Center, and Ilan Stavans, Amherst College professor of Latino culture.

Since Halloween 2011, an estimated $1.6 billion of customer funds have gone missing from failed brokerage firm MF Global. The hunt has taken months with few results.

Tomorrow, the House Financial Services Subcommittee on Oversight and Investigations hosts its third hearing on the matter, and there might be a clue on where to look. Takeaway business editor Charlie Herman tells us the big number to watch for: $200 million.

Presidential candidate Mitt Romney is leading the pack of GOP hopefuls, but that doesn't mean he's escaped criticism for not being able to unify the Republican party: some say he's not conservative enough, or that he's not likable. Of course, the perceived inability to unify the party isn't unique to Romney.

From the aftermath of the attack in Kandahar which resulted in 16 civilian deaths, the BBC's David Loyn reports that Afghan citizens appear fed up with a decade of war. The worsening ties between U.S. troops and Afghans have been exacerbated in 2012 by the U.S. troops burning of the Koran and the March 11 shooting.

Police believe they have cornered the gunman in the shooting at a Jewish school earlier this week. Identified as 24-year-old Muhammed Merah, the suspect opened fire when the police tried to raid his home overnight, wounding two officers. The standoff ends one of the largest manhunts in recent French history.

Former Goldman Sachs employee Greg Smith has cost the company more than $2 billion in stock value since his op-ed piece ran in the New York Times yesterday. Smith's very public jump from the company at the top of the Wall Street food chain has raised some questions about Goldman's internal culture, it's capacity to learn lessons from past mistakes and it's ability to control its own brand.

The ability to erase specific memories might soon be real. Dr. Todd Sacktor explained that this could eventually be used to treat disorders like PTSD.

As Libyan rebels continue their hunt for Moammar Gadhafi, the military commander of the anti-Gaddafi forces in Tripoli says he wants and apology from the United States and the United Kingdom. The commander, Abdel Hakijm Belhaj, says he was tortured after being arrested in Bangkok in 2004 as a terrorism suspect, then transferred by the CIA and British intelligence agencies to a prison in Libya. A CIA document recently uncovered in Gadhafi's Tripoli compound shows "that the British and Libyans worked together to arrange for a terrorism suspect to be removed from Hong Kong to Tripoli – along with his wife and children – despite the risk that they would be tortured," according to The Guardian.

Formula One racing attracts fans all over the world, and back in the '80s and '90s there was one man who everybody wanted to see race: Brazilian driver Ayrton Senna. Known for being a charismatic risk taker on and off the track, Senna's legions of fans were shocked when he was killed in a crash during the San Marino Grand Prix in 1994. A new documentary called "Senna" tells the story of his life. The film won the World Cinema Audience Award: Documentary at this year's Sundance Festival.

The Obama administration is is releasing 30 million barrels of oil from the U.S. Strategic Petroluem Reserve as part of a broader international effort to increase the amount of oil—to 60 million barrels—into the world market over the next month, in the hopes of replacing some of the oil production lost due to the conflict in Libya and reducing energy prices for businesses and consumers. 

We continue our conversation on President Obama's announcement tonight on his plan for withdrawing US troops from Afghanistan, including how many troops will be returning home and when, and whether or not this will signal the end of the Afghanistan War. The BBC's Paul Wood is in Kabul, the capital of Afghanistan, and has been speaking with Afghans about their opinions on possible U.S. and NATO troop withdrawals. 

Some of the U.S.'s largest corporations—including Apple, Google and Microsoft—have a lot of their profits saved in low-tax countries overseas. Some of these companies are lobbying Congress and the Obama administration for a tax break. In a move these companies say would function as a stimulus to the economy, they are proposing a repatriation holiday, in which their profits could be returned home with a much smaller tax penalty than they would normally incur. David Kocieniewski, tax reporter for our partner The New York Times, speaks with us about which companies are lobbying, and how measures like this have fared in past years.

The head of China's General Staff of the notoriously secretive People's Liberation Army, General Chen Bingde, has confirmed that the country is building an aircraft carrier. The vessel, a remodeled Soviet-era warship, is expected to be ready for trials at sea later this year. The carrier is symbolic of China's expanding naval power, and possibly of pending territorial disputes in the country's surrounding seas. 

NATO defense ministers have a lot to discuss as they meet today in Brussels, following 60 air strikes in Tripoli, their most concentrated attack on the Libyan capital since air strikes began in March. Jonathan Marcus, BBC Defense and Diplomatic correspondent, joins us from the NATO meeting.

In the world of modern-day superstar sex symbols, there are those who simply look beautiful, and then there are those like Eva Mendes. Willing to play roles that range from the brilliant to the ridiculous, she’s famously starred in both Oscar-nominated fare like “Training Day” and loony comedies like “The Other Guys.”  Her newest film, which opens today, is called “Last Night.” The movie follows a husband and wife, played by Sam Worthington and Keira Knightley, who are each faced with the temptation stray from their marriage. Eva Mendes plays the woman who catches the eye of Sam Worthington’s character.

Reports say 194 people across the southern United States are dead after tornadoes and storms ripped across the region—and that number is expected to climb. An estimated mile-wide tornado struck the town of Tuscaloosa, where there's a University of Alabama campus. Katelyn Ingram is a sophomore there; she talks with us about her experience with the storm. Harold Brooks, research meteorologist at the National Severe Storms Laboratory in Norman, Oklahoma, also weighs in.