The loophole in the "Freedom of Information" act

George Monbiot has a piece in today's Guardian (which may shortly appear at his website) regarding the Great Skye Toll Bridge Rip-off in which a bridge was built linking mainland Scotland with the Isle of Skye at an eight-figure cost to the public, yet the people using it were charged the biggest tolls anywhere in the world. (This was part of the Tory government's private finance dogma, which dictated that private companies run things better than the state.) It seems the new Freedom of Information act (which has had the government deleting internal emails en masse to stop them being covered) doesn't cover this either, because it prejudices this company's business.