Every year the Museum will remember 9/11 until I die or the site dies, whatever comes first.
It’s something we cannot forget, because sadly people are forgetting and our children have no idea, and some people as young as 25 year olds are confused to see a New York once up in smoke and can’t understand how people fell out of the Twin Towers to escape the hell or go into hell, depending on how you look at it.
The Twin Towers had cheated disasters before. The bombings in February of 1993 impacted a lot more people, because each tower could hold up to 50,000 people of workers, visitors, travelers, etc. On the morning of 9/11, Lower Manhattan was considered very lucky compared to 1993, given it was a late summer day, a Yankees game went into extra innings due to a rain delay and people deciding to show up at work at 9:00 instead of 7 or 6 in the morning made the death count much lower than what could’ve been.
(In the 1993 bombings, the bombers tried to hit one of the 4 corners of the towers, and supposedly if they had hit one of the corners of the towers, it could loose it’s integrity immediately. Lower Manhattan was lucky too, as the bombers missed their target.)
Regardless between the three coordinated attacks, over 3,000 people died. AT&T, which was mostly an LD, data transport and cable TV services did not loose any of their workers, while other engineers did loose life.
According to AT&T, the switching system used in 2001, mostly of 5ESS or possibly DMS switching systems remained in tact. In fact because the switching systems were in a vault, the services (at least wired connections) could’ve worked if it wasn’t the wiring getting severed by the atrocious damage of the towers.
In the early 1970s, AT&T produced a video of the construction of the World Trade Center, and installation of switching equipment at the time (albeit an earlier generation of an ESS) and the days that followed with a typical business day in the Twin Towers. This film was released in 1976