There has been lots of buzz this weekend about what the New York Times calls "an unusually blunt and detailed" report on Iran from the International Atomic Energy Agency. Among the findings: Iran's military has produced powerful centrifuges -- the kind that can be used to enrich uranium and speed up development of nuclear weapons.

If the report is a welcome flash of toughness from the IAEA, this assessment, from a "senior official close to the agency," shows that it's still wise to temper our expectations about what comes next.

"There are certain parts of their nuclear program where the military seems to have played a role..We want to understand why."