"Certainly we do not want to, for things to get to military conflict," the US secretary of state said. "If they elevate the threat of their weapons program to a level that we believe require action, then, that option's on the table."
Thousands of younger demonstrators erupted with joy while a rival older crowd angrily clashed with riot police on Friday — epitomizing the generational splits over the country's sweeping political scandal.
Jessica Golloher reports from Moscow on how some Russians escape the winter blues with the help of zoo animals. Russia's long, cold and dark winters have been linked with high rates of depression and stress.
Tensions are on the rise between the U.S. and Pakistan because of a man named Raymond Davis. Davis is an American who has admitted to killing two Pakistani men in Lahore. To help us unravel this mystery is Aleem Maqbool, from the BBC.
We all remember the speech that former Secretary of State Colin Powell gave to the UN in 2003. And part of his argument rested on the word of an Iraqi defector named Rafid Ahmed Alwan al-Janabi. Now al-Janabi has said that he was lying.
The New York Times' Nicholas Kristof is in Bahrain, where protesters have taken over the central square in Manama. Kristof explains that the rise of the middle class in Bahrain is one of the reasons there are demands for a more democratic rule.