Where the use of Government Trojans results in contraband on, or commission of a cybercrime via, a defendant's computer, there is a risk that through a gag order (for example a US National security letter) the defendant could be prevented from disclosing his defense, on national security grounds. The balancing of such apparent national security interests against principles of civil liberties, is a nettle which, should the use of government trojans continue,[58] may need to be grasped by Legislatures in the near future.