From Newsweek:

The Bush administration is refusing to disclose internal e-mails, letters and notes showing contacts with major telecommunications companies over how to persuade Congress to back a controversial surveillance bill, according to recently disclosed court documents....

One court declaration, for example, confirms the existence of notes showing that a telecom representative called an Office of Director of National Intelligence (ODNI) lawyer last fall to talk about "various options" to block the lawsuits, including "such options as court orders and legislation....

The declarations were filed in court by government lawyers only after U.S. Judge Jeffrey White in San Francisco, who is overseeing the case, ordered them to fully process the Electronic Frontier Foundation's FOIA request for documents showing lobbying contacts by the telecoms. The government initially resisted even responding to the FOIA request, but White found that disclosure was in the public interest because it "may enable the public to participate meaningfully in the debate over" the pending surveillance legislation.

You can put this in the known unknowns category.