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The return of pneumatic tubes
(www.technologyreview.com)
This is a most excellent place for technology news and articles.
Pressure failures is what happened to transit tubes. Usually with grisly results.
Sounds like quitter talk.
"grisly results". Are you sure? I think the pressure failure of the Titan submarine was closer to "grisly". Transit tube failure scores lower on the pressure failure scale. /jk