Negotiations between six world powers and Iran over its nuclear program have been "tough and very serious" and the next few days will show whether Tehran is ready to make the necessary hard decisions, a senior U.S. official said on Friday.
German authorities said on Friday they had found torn-up sick notes showing that the pilot who crashed a plane into the French Alps was suffering from an illness that should have grounded him on the day of the tragedy.
President Bashar al-Assad of Syria dismissed as "malicious propaganda" allegations that his troops used chlorine gas in the fight against insurgent rebels, according to an interview broadcast on Friday on CBS "This Morning."