Franklin Roosevelt actually said...

"Possession of the mines, collieries, and facilities taken under this order shall be terminated by the Secretary of the Interior within sixty days after he determines that the productive efficiency of ..."

"The exercise, as herein specified, of the powers vested in me is necessary to insure, in the interest of the war effort, the operation of these mines, collieries, and facilities."

"He shall provide such protection of the employees as may be necessary to maintain production."

"The Secretary of the Interior is authorized and directed to take possession of the mines, collieries, and preparation facilities designated in the list attached hereto."