Talk of the Nation
After the 1994 genocide in Rwanda, world leaders vowed that such mass atrocities could never be allowed to happen again. In 2005, the U.N. adopted the Responsibility to Protect, a set of principles to guide the response of the international community if a government fails to protect its population.
Talk of the Nation
The Susan G. Komen for the Cure Foundation reversed its controversial decision to stop providing funding to Planned Parenthood. Rodger Jones, an editorial writer for the Dallas Morning Star, says that to retain the support of abortion rights opponents, Komen needs to consider different fundraising options.
Talk of the Nation
The jobs numbers at the start of 2012, shed a ray of positivity on a gloomy economic picture. Some economists warn against premature optimism. While the economy is creating jobs again, it will take years to return to full employment.
Talk of the Nation

(iStockphoto.com)
More than 200,000 bikes were reported stolen in 2010, according to FBI statistics. By some estimates, more than 1 million bike thefts go unreported annually. When thieves stole writer Patrick Symmes' bike in 2006, he set out on a vigilante crusade in "the dangerous underworld of vanished bicycles."
Talk of the Nation
As it circles Earth, NASA's Interstellar Boundary Explorer hunts for particles streaming in from beyond the solar system. It has intercepted hydrogen, helium, neon and oxygen atoms. IBEX principal investigator Dave McComas discusses how the abundance of those atoms hints at the Milky Way's composition.
Talk of the Nation
In That's Disgusting: Unraveling the Mysteries of Repulsion, psychologist Rachel Herz discusses the origins of disgust — what she calls the 'instinct that's learned' — and why humans turn up their noses at smelly feet but devour expensive cheeses cultured with some of the very same stinky bacteria.
Talk of the Nation
Amyloid plaques and tangles of protein in the brain are two of the key signs of the form of dementia known as Alzheimer's disease. In new work reported in the journal PLOS One, researchers tracked the spread of tangles of tau protein from neuron to neuron in the brains of mice. Study co-author Karen Duff of the Columbia University Medical Center discusses the findings.
Talk of the Nation
NASA's iconic images of Earth from space date back to the late 1960s--with snapshots taken by Apollo astronauts. The modern "blue marble" images are captured by machines and they're not photos. They're datasets collected by instruments aboard satellites and then translated into imagery on the ground.