U.S. District Judge Cormac Carney rejected a motion from Mak that said the laws he violated were vague and methods used during trial by prosecutors were improper.
Sub technology revealed in court during spy appeal →
A presidential directive on export controls announced last week includes the creation of an interagency working group that will bolster the Justice Department export enforcement investigations, he said.
Beijing espionage poses 'No. 1' threat →