[tathougies]

That is unconstitutional in most countries, because you have a right to a public trial. In the United States, it's especially illegal, since the press has a right to free reporting, including public trial.

The danger here is the government starting to weaponize this 'freedom', by designating mundane crimes as 'terrorism' and then holding secret trials. Given that this is precedented, and leads to significantly worse outcomes (including full-on genocide), it seems that it's probably better to just accept that there will be mass shootings. After all, even adding up all the mass shootings in the world, you will still not come close to the slaughter's perpetrated by governments holding secret trials of dissidents