I understand - but I’ve never said it can’t happen here. I wish our current government would do this today with Muslims living in the US; how many times must Americans be killed by terrorists “on watch lists”?
Besides living a dozen miles west of Ground Zero in Manhattan, closer to home are two sites of saboteur attacks during WWI - Black Tom Island in Jersey City and the Canadian Car & Foundry Company in Lyndhurst (both fairly close together in northeastern NJ). Both were sending munitions to the Triple Entente in violation of our neutrality (and as such, fair game), but they showed we were vulnerable; in my town, they stationed a detachment of troops at a rail bridge over a river connecting to Newark.
I don’t know where we balance our safety with government authority; I certainly don’t trust the government to do it (in light of the last 20 years).
Personally I think it is a bad concept to support. Giving government this much power and control over the citizens is a bad door to open. It very well could be communists rounding up Christians someday soon. I have always said the same of using government to force ANY religious values and ideology on society without choice, once that door is opened it very well could be sharia that is forced on society without choice someday. We already see this with the religious cult of veganism being forced on society as an example of how this can turn out. We should be very very wary and cautious of what we ask for and what doors we open... Once opened they cannot be closed.
Don’t forget the 1919 Wall St. bombing. Some of the buildings still have visible scars. Committed by Mario Buda, who was up to his neck in anarchist doings with his two pals Nicola Sacco and Bart. Vanzetti. Lucky for him, he escaped to Italy in the aftermath of the bombing only to be murdered by Mussolini.
My grand father was a guard at port newark in WW II. They were alert to sabatage but were not aware of the deal with the mafia which controlled the docks. Hence no sabotage! Newark was a hot bed of commies. Some of the Rosenberg ring were there and they were just the tip of the ice berg.