Have a read of this, and wonder why with the level raised to "Substantial" you'd avoid saying what your concrete reasons are for raising the level.
Well, if you say what you know, the perpetrators would either abandon their action or change target.
However, if you don't define what you've heard, then the activity can still go ahead and have its desired effect.
Use it for bringing in whatever the next stage of the Tyrannical Superstate will be ...