The latest on Iran...

Lots of unanswered questions.

Iran has pumped out about seven tons of the gas it needs for uranium enrichment just weeks after it restarted the process, the International Atomic Energy Agency reported Friday. A former UN nuclear inspector said that is enough for an atomic weapon.

In unusually strong language, an IAEA report also said questions remain about key aspects of Iran's 18 years of clandestine nuclear activity.

"The agency is not yet in a position to clarify some important outstanding issues after 2 1/2 years of intensive inspections and investigation," said the confidential document obtained by The Associated Press.

"Iran's full transparency is indispensable and overdue."

"Given Iran's past concealment efforts over many years, such transparency efforts should ... include access to individuals, documentation related to procurement ... certain military-owned workshops and research and development locations," the report said, in a list of perceived Iranian failings.

Among the unanswered questions, according to the report, were gaps in the documented development of Iran's centrifuge program used in uranium enrichment - and in what was received, and when, from the black market network headed by Pakistani scientist A.Q. Khan