KNTV NBC Nightly News With Lester Holt December 24, 2019 10:20:00
Them develop critical, new capabilities >> were building the model, really, for a mission-ready package tunnel task force. its never been done. >> here we go! >> hop on! >> reporter: one of the points of this exercise is to incorporate a different breathing technology instead of the normal 20-minute-or-so tank, theyre wearing a device that allows them to spend not just minutes but hours on scene in the thick of it >> were normally used to having, setting up in front of a building, where theres a...
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