Pending Copyright Treaty a Secret?

Penguinisto writes: According to CNET, a request for information by Knowledge Ecology International about a pending copyright treaty was denied. Even stranger, the Freedom of Information Act request was denied for "national security" reasons (PDF). While it is not unusual for the White House of any administration to block FOIA requests for national security reasons, One would think that a treaty that affects civil interests alone wouldn't qualify for such secrecy. Not exactly sure what involvement the former RIAA mouthpiece Donald Verelli (a recent Obama pick for the DOJ) may have in this...