No, I think if an American domestic terrorist does it, there’s a nice little "didn’t happen in America" defense.

Its not a country. It's extraterritorial.

This is not an embassy. There is a separate, standalone, treaty with the UN giving them that land.

I've never looked into it but thought embassies were "territory" lended to the embassies by the country they were placed in. If not it really shoots holes in the conservative talking point that people applying for political asylum should do so at an embassy, because you can only apply for asylum once on U.S. soil I thought

Try arresting someone who has diplomatic immunity. Tell me how that goes for you. Now explain to me why that person was not arrested. After that replace the person with the embassy building and you will finally understand what people are talking about.

US soil is a completely different thing than the geographic US

Don't acuse others of being pedantic when you're just wrong. If you don't understand the concepts, then don't comment until you educate yourself.

The US signed a treaty granting the extraterritorial status. It's not US territory unless the UN abandons it.

Can you get to the United Nations without entering the U.S., no. Do you need a passport to enter or leave the U.N., no.

Do you need to remember you have a knife in your pocket, you probably should... I saw the metal detectors got worried at 19 or so and went back out front stashed my pocket knife in the trash can next to one of the umpteen NYPD officers that seem to be everywhere.

Took the tour and when I left I grabbed my knife out between the can and the case while a cop looked at me in a manner that made me wonder how that conversation was going to go.

"Sorry officer I just needed to stash this because I didn't know if they would hold it at security."

There's no dotted line around the UN on maps like Vatican City or Monaco. The UN is a diplomatic construct, and not its own country. It is fully on US soil, and nothing in the treaty says otherwise. (Yes, I checked, at least this copy I found as a pdf , which looks to be the original one. I don't know if there are any addendums though.

That agreement was put in place specifically to guarantee worldwide access to the UN facility for diplomats, regardless of the opinion of the host country. It explicitly says that local laws apply there, as long as they don't conflict with UN regulations. It calls on the local government to maintain access to the facility, but does not allow local government officials on site without permission. It exempts diplomats and other visitors from the local visa requirements, but also states that the site will not used as a refuge for anyone avoiding legal process in the US.

(The original agreement also has arrangements if the UN wants to build their own "aerodome"....)