Reuters/Denis Bailbouse - Iranian Foreign Minister Mohammad Javad Zarif (R) speaks with European Union foreign policy chief Catherine Ashton after a news conference following nuclear talks at the United Nations European headquarters in Geneva November 10, 2013.
Iran
November 11, 2013, Suzanne Maloney
On Saturday, several intense days of negotiations among Iran and six world powers culminated in frustration, as continuing differences between the sides prevented the much-anticipated signing of an interim accord to address international concerns over Iran's nuclear program.
Read what Brookings experts have to say
about the outcome of the talks