That's a damn lie. Hansen was not "gaged" in any sense of the word. He was asked, as any other employee on the payroll in any organization is required to do when speaking for the organization, to submit his articles for review before publication. He refused to do so and should have had his ass fired on the spot.
Hansen is a publicity seaking hustler.
This administration has injected politics into areas of the scientific arena where it was not previously seen. Hansen is not the first to complain about it.