On August 17, 1950, Julius and Ethel Rosenberg were indicted for conspiring to commit espionage in wartime, in?

On August 17, 1950, Julius and Ethel Rosenberg were indicted for conspiring to commit espionage in wartime, in violation of the Espionage Act of 1917. They were executed for treason on June 19, 1953. The authority that the courts used is found in Section 3 of Article ????