Via one of my buds who is in a position to know.

http://www.whitehouse.gov/the-press-...ty-information

The gist of this?

Unclassified information may become classified upon submission of a
FOIA request for it allowing for a public veneer of openness while
reserving the right to clam up if said openness should prove
inconvenient when someone actually learns of a document's existence
and has the nerve to request it.