‘CIA misled Congress on Levinson’

McCain said he is confident the U.S. is doing all it can to learn what has happened to Robert Levinson, but he told CNN that the CIA has not been forthcoming with the Congress about him. In the meantime, Iran's foreign minister, asserted that Levinson is "not incarcerated by the government and I believe the government runs, pretty much, good control of the country."

An Associated Press investigation found that Levinson was investigating the Iranian Government for CIA. The U.S. had for long described Levinson as a citizen who traveled to an Iranian island on private business.

But Iran's Foreign Minister Javad Zarif, when asked about the whereabouts of Lavinson , said: "I have no idea."

"If we can trace him and find him, we will certainly discuss" returning him to the United States, he said.

Secretary of State John Kerry had earlier dismissed a suggestion by Levinson's family that the U.S. Government was not doing enough to find out any news on Levinson.