NEAR HANFORD, Wash.-- For the first time since 9-11, we get to see inside a highly secure plant, where plutonium was packaged for use in nuclear weapons.
Plutonium production at Hanford ended after the cold war, but was still stored deep inside the Hanford site until just this past November.
Now for the first time in nearly a decade security restrictions have been dropped.
And the process now, is to get the building ready to be decontaminated, deconstructed and destroyed.
Workers at the PFP couldn't even tell their families exactly what they did because of security concerns. Now they say the declassification of their work is "really weird," because now they can openly discuss what they did.
Watch the video on the right for a look inside the plant.