You're right I should've looked more closely, but I was just wondering about what it said towards the end of the article about U2 spy photographs and what's becoming declassified.
> After 25 years, declassification review is automatic with nine narrow exceptions that allow information to remain as classified. At 50 years, there are two exceptions, and classifications beyond 75 years require special permission.[0]
The nine exemptions can be found at the Justice Department's website[1].
