I am with you on the knee-jerk reacting. Just as a matter of information, there is a Justice Department manual on how investigations are to be conducted and it specifies that while there is an active investigation, people involved are not allowed to discuss the matter or to release information or evidence. If there is no investigation or if one has been completed without findings to warrant prosecution, these restriction don't apply.
When looked at dispassionately the fact that an Attorney General would refuse to discuss an issue of concern or to release a related piece of evidence, especially at the expense of having his reputation sullied, would indicate that an investigation was ongoing and that the officials involved were following established procedure. Adherence to procedure might not be satisfactory on a TV show or discussion forum, but it is crucial in a successful prosecution.
Not only is the headline misleading, it has not even been legally established that there is such a person or that such a person signed a ND agreement.
Victoria Toensing did not contact Sen. Grassley. The Senator has had to write a letter to her office asking to speak to her client.
Much of this stuff on FR is blogger driven nonsense.