Secretary of Supreme National Security Council Saeed Jalili said here on Wednesday that Iran's essential questions should be answered, IRNA reported.
Speaking to reporters on the sidelines of funeral procession for martyred academician, Majid Shahriari, here on Wednesday, Jalili said the west should respond to Tehran's basic questions in the talks.
He said certain arrogant powers have embarked on monopolizing politics, power and certain scientific fields.
"They (westerners) used all possible ploys, including resolution, sanctions and political pressures, against us and getting assured of their futility, have now resorted to assassination. This is sign of their desperation and failure."
That's a big fiasco for the UN Security Council that terrorists enforce its resolutions, said Jalili, adding, "We are now witnessing that today, the list of their resolutions concords with that of terrorists."
Asked whether EU foreign policy chief Catherine Ashton has answered three questions of Iran, Jalili said the basic questions should be answered in talks and "we look forward to hearing responses to such questions in the talks."