US President Barack Obama alleges he has exchanged letters with Iranian President Hassan Rouhani.In an interview aired on ABC on Sunday, Obama claimed that he had contacted President Rouhani via letters. “We haven’t spoken directly,” Obama said. He added that the result of Syria’s chemical weapons deal indicates that “there is the potential of resolving” Iran’s nuclear issue. Obama was referring to a deal between Washington and Moscow to put Syria’s chemical weapons stockpile under international supervision and eliminate the weapons by mid-2014. Rouhani says Tehran will not give up an iota of its nuclear rights. He has also said that time for negotiations is limited. The United States, Israel, and some of their allies have repeatedly accused Iran of pursuing non-civilian objectives in its nuclear energy program. Iran rejects the allegations, arguing that as a committed signatory to the nuclear Non-Proliferation Treaty (NPT) and a member of the International Atomic Energy Agency (IAEA), it has the right to use nuclear technology for peaceful purposes. In addition, the IAEA has conducted numerous inspections of Iran's nuclear facilities but has never found any evidence showing that the Iranian nuclear program has been diverted toward military objectives.