The point is, the information that is 'leaked' is STOLEN. Therefore these journalists who receive it and write about it and the papers which publish it, should be at the very least, interrogated, and preferably prosecuted.
Think of the people who work in the departments under investigation, wondering if they will be implicated, which of their colleagues it is, whether someone has been going through their desk, files, etc. And all the time these journalists are sitting on the knowledge of who is responsible, but acting like martyrs 'protecting'their sources and pretending it is in the interest of The Public, not their own.