What root servers were in the WTC towers prior to 9/11?

Question

Domain Name System

I remember reading an article a long time ago that, until 2001, there were already two root DNS servers located in WTC-1 and WTC-2. And, accordingly, it caused some network blackout during known events. This was cited as an example after which the redundancy approach was revised.
M.b. Has anyone else seen the puff too? I can’t find it at all either in the Russian-speaking or in the English-speaking Internet.

Answer 1

Of course you can't find it, because the root servers weren't located there.
Here is a very extensive article (more precisely, it is a piece of a book) that describes what really happened.
https://www.nap.edu/read/10569/chapter/4