Before that, if you have that rule in place, it will force the public service to say to itself, “When we want to invoke the national security exception, we need to have a specific rationale, and we need to identify which effects it will have in particular. Does it mean we will keep this kind of information confidential? Does it mean we will suspend a particular rule dealing with fairness to bidders?”, and so on. We don't just invoke the exception and that's it.
Possibly this committee could ask the government what policies it has put in place to ensure that the national security exception is justified when it is invoked. This would discipline the public service to invoke the exception only when it is actually mandated.