WASHINGTON, March 9 (Xinhua) -- U.S. Secretary of State John Kerry on Sunday once again called for Iran's cooperation in finding Robert Levinson, a retired agent of the Federal Bureau of Investigation (FBI) who went missing in the Islamic republic since 2007. "We respectfully ask the government of Iran to work cooperatively with us on the investigation ...

WASHINGTON (AP) -- Sen. Bill Nelson said Tuesday he is willing to travel to Iran if it would help find missing CIA contractor Robert Levinson who disappeared while on a secret intelligence mission to Iran. In a speech on the Senate floor, Nelson said he has spoken in recent days to Mohammad Khazaee, the Iranian ambassador to the United Nations, and ...