Except as provided in section
3776 of this title, no action for damages on claims cognizable under this part shall lie against the United States or the Commission, and no such action shall lie against any officer or employee of the United States. Neither this section nor section
3776 of this title shall preclude actions against officers or employees of the United States for injuries resulting from their acts outside the scope of their employment or not in the line of their duties, or from their acts committed with the intent to injure the person or property of another.