The questions involved in this case are practically identical with those we decided in Grossman v. United States, United States Atomic Energy Commission, 101 U.S.App.D.C. 22, 246 F.2d 709, appeal dismissed, 355 U.S. 285, 78 S.Ct. 340, 2 L.Ed.2d 270, rehearing denied, 355 U. S. 942, 78 S.Ct. 427, 2 L.Ed.2d 422. The principle of res judicata requires affirmance of the order now before us.

Affirmed.