`` We have identified all of the issues we need to address '' for final deal , says Ashton . The next round of talks will begin on March 17 , EU foreign policy chief says . Six world powers and Iran have reached a deal on the framework for comprehensive negotiations over Tehran 's nuclear program , EU foreign policy chief Catherine Ashton said Thursday . Comment:
`` We have identified all of the issues we need to address '' for final deal , says Ashton . The next round of talks will begin on March 17 , EU foreign policy chief says . Comment: