The IAEA report leaked this week, says Tehran is obstructing its efforts to probe its nuclear energy program, which has the potential to give it atomic weapons.
The energy giant's former vice chairman was considered a "bit player" in the Enron probe, but "someone told us he had information that would be useful, " the source said.
Although the probe would carry no cameras in the classic sense, its onboard instruments would include a low-energy charged particle experiment, a magnetometer, a cosmic ray detector, and an energetic neutral atom detector.