What is the largest (known) ad hoc "National Security Area" lockdown/lockout? Nuclear or otherwise?

See Office of Secure Transportation Wiki.

It’s part of DOE. If a nuke-material (or other spooky stuff, I guess) transport through civilian areas gets into trouble, normal civil law is suspended and Shit Gets Real.

I say “ad-hoc” to exclude normally secure Federal area, like most (?) of Nevada.

I’m also wondering if “National Security Area” is a term of art specific to DOE–I have in mind the old stand-bye of the big bad government isolates the house of the kid who befriended ET or his/entire town [this is more Twilight Zone/Area 51].

Every time posse comitatus is legally breached I’m sure, in concept, some such “area” is declared.*

Maybe NYC, if not CONUS itself (!) somewhere may have been declared (required to be declared, as soon as possible, legally) something along that order.*

*note for new thread(s)?

a friend of mine worked on a project in the 80s to plan how to ship nerve gas from an arsenal in Kentucky out to an island in the pacific where it would be destroyed. It took a long time to plan that , the main complex part was getting it from the army base to the airport. Don’t recall much of the details about it.

Do you want to count 9/11 when theFAA ordered all civilian flights in the U.S. to be grounded?

Ref 9/11 see Security Control of Air Traffic and Air Navigation Aids - Wikipedia for more terms of art.

NSA has other meanings as well: National Security Area - Wikipedia In this case it’s something not nearly as big a deal.

Late add:

I recall from my time in homeland security software that the Secret Service and FBI have some planning and oversight responsibility for civil events that might be terrorist magnets. The Super Bowl next weekend being a canonical example.

I recall they had provisions to observe all the planning and if necessary cordon off areas. I don’t recall the magic TLA for the areas or the process. Some poking around the FBI website might bring a clue.

I do know they depended on the local authorities for the vast majority of manpower, SWAT teams, ambulances, etc. But they brought their own uber-SWAT and their own radiation decon stations & such. Stuff the XYZ County Sheriff wouldn’t have and couldn’t borrow.

Yes, 9/11 was why I mentioned NYC and CONUS. (No love for Hawaii and Alaska?)

The fact about SCATANA in LSL’s ref is fascinating. First off, I’m impressed that the plan was in place already for all these decades. Second off, it implies that pilots (who? every single airliner pilot?) all know or are supposed to know “a code word” which means “land as soon as possible it’s the law.”

That’s what the Wiki says. Is that for real?

I’m not sure where you got the idea of some code word. ATC says “FAA HQ has declared SCATANA. All aircraft are required to land ASAP.”

Airplanes not talking to ATC (e.g. light planes out sightseeing) may or may not get the word. They’ll land within a couple hours anyhow.

It’s not like something like this takes only seconds to implement. From airliner cruise, “landing ASAP” still takes ~20-30 minutes after you decide where to go.

Here’s the actual reg: 14 CFR 99 eCFR :: 14 CFR Part 99 -- Security Control of Air Traffic (FAR Part 99). Pilots are expected to know and be tested on the basics.

Not sure myself; I think I was thinking of the “secret code” broadcast in Israel before a SCUD attack.

Fascinating and sobering. Thanks for the ref to the actual reg.

Makes me wonder now about civil rail transportation.

And Guam.

Guam ADIZ.
(a) Inner boundary. From a point 13°52′07″ N, 143°59′16″ E, counterclockwise along the 50-nautical-mile radius arc of the NIMITZ VORTAC (located at 13°27′11″ N, 144°43′51″ E); to a point 13°02′08″ N, 145°28′17″ E; then to a point 14°49′07″ N, 146°13′58″ E; counterclockwise along the 35-nautical-mile radius arc of the SAIPAN NDB (located at 15°06′46″ N, 145°42′42″ E); to a point 15°24′21″ N, 145°11′21″ E; then to the point of origin.

(b) Outer boundary. The area bounded by a circle with a radius of 250 NM centered at latitude 13°32′41″ N, longitude 144°50′30″ E.

Not “immediately”?

:confused: “TLA”?

Three Letter Acronym. The entire government, not to mention the aerospace industry, and several unrelated industries besides runs entirely on TLAs.

OTOH, IIRC some other industries don’t. Although that’s changing PDQ under heavy pressure from DOD, DOT, & IRS (via OMB and the CBO) to save those precious vowels.

There are Naval Vessel Protective Zones that move along with US warships. So these move through standard commercial waterways. If you get too close you will be putting yourself in grave danger.
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