There has been an exchange of letters between Maria Miller, the Culture Secretary, and Lord Patten, the Chair of the BBC Trust, and they are polite on the surface but if you read between the lines there is some tension there.
Maria Miller says there is real public concern about the trust and integrity in the BBC. When you speak to people in the department they say the way the BBC have handled this, with changing their story, is a "shambles".
They want Lord Patten to really get grip on this, to protect tax payers who pay the license fee, to make sure the inquiries are going to work.
Lord Patten replied with a sharp line about protecting the independence of the BBC, ie: keep your tanks off our lawn.
Amid the fallout from the Jimmy Savile scandal the BBC is investigating nine allegations of sexual harassment among staff and contributors.
BBC boss George Entwistle has spent almost two hours taking questions from MPs about the corporation's handling of the Savile scandal.
Ex-BBC boss Mark Thompson has told ITV News he will help with any inquiry into the corporation and its handling of the Savile allegations.