Charles Krauthammer told viewers Tuesday on "Special Report with Bret Baier" that the State Department's reinstatement of four officials who had been put on leave after the Benghazi attacks illustrates the Department's refusal to hold anyone accountable.

"This is the definition of how to conduct a stonewall," Krauthammer, a syndicated columnist and Fox News contributor, said of Secretary of State John Kerry's decision to put the officials back to work.

"The new Secretary of State looks at this and says, essentially, these people were not responsible, or they don't really carry any accountability - they are back on the job, as you say, without ever missing a paycheck, and no one is held responsible."

Krauthammer added, "whatever the intent was, it surely is a Clinton protection operation, in effect."