Terrific catch, Laodicean. Thank you. I'll save you the trouble of spelling out what you presumably found noteworthy. Never read the book or seen the movie myself. But the wiki summary is interesting enough.
https://en.m.wikipedia.org/wiki/Three_D ... the_CondorJoe Turner (Robert Redford) is a bookish CIA analyst, code named "Condor". He works at the American Literary Historical Society in New York City, which is actually a clandestine CIA office. The seven staff members read books, newspapers, and magazines from around the world, looking for hidden meanings and other useful information. Turner files a report to CIA headquarters on a thriller novel with some strange plot elements, noting the unusual assortment of languages it has been translated into (despite not selling well).
On the day Turner is expecting a response to his report, he steps out, through a back basement door, to pick up staff lunches at a nearby deli. Meanwhile, armed men enter the office and murder the other six staffers. Turner returns to find his coworkers dead; frightened, he grabs a gun and exits the building. He contacts the CIA's New York headquarters in the World Trade Center from a phone booth and is given instructions to meet Wicks, his head of department, who will bring him to safety. But the rendezvous is a trap. Wicks shoots an accompanying CIA staffer and attempts to kill Turner, who wounds Wicks before escaping.
So Radiohead chooses to sample a line from that movie, and by sample a line that means
playing the line on a loop through nearly the entire song. The movie's hero
detects hidden meanings planted in seemingly innocuous art. The phone conversation he has is with a man at New York CIA headquarters in the
World Trade Center. The line that man says which Radiohead sampled and looped is: "This is the Panic Office, section
917 may have been hit. Activate the following procedure." Now, I usually think of numerological hypotheses as wet farts, but 917 is not too far, visually anyway, from 911. Maybe the original author chose it precisely to resonate with the emergency code. Still...
interesting.
Obviously the WTC had already been attacked in 1993, a few years before OK Computer, so that could have been a factor. Doesn't really explain the
obsessiveness with that line, or the countless airplane illusions in the artwork, or the Kid A painting, or...now that I look at it again...that OK Computer cover. The "lost child" pair now looks way more like it was
meant to convey an 11. The road still only looks vaguely like a 9.

That road is a highway junction in Connecticut.
https://www.wnpr.org/post/fans-id-locat ... tford-connIt's the junction of Interstates 84 and 91 in Hartford, Connecticut.
Apparently it was taken by the band itself from the window of a Hilton hotel on one of the last tour stops before recording OK Computer. The photo itself would have been square, so Donwood or somebody painted on it in a way that just happened to vaguely resemble a 9.
What would Joe Turner think?