Confused here (again) If Mueller finish's his investigation

[Jim__]

5. Whitaker can suppress the publication of the final report.

From the Washington Post:

If Whitaker takes over direct supervision of the Russia investigation from Rosenstein, he would assume budget authority for Mueller’s work, giving him the ability to sharply reduce Mueller’s staff and resources. His approval would also be required before Mueller could take major investigative steps, including asking a grand jury for additional indictments.

Any report that Mueller issues describing his overall findings would be submitted to Whitaker, who could decide it contained privileged material that should not be made public.