MSNBC MSNBC Live With Velshi and Ruhle December 24, 2019 18:33:00
>> we're building for a mission ready task force under ground. >> one of the points of this exercise is to incorporate a different breathing technology. instead of a normal 20 minute or so tank, they're wearing a device that allows themselves to spend hours on scene in the thick of it. >> we're normally setting up in front of a building where there is a collapse, and there is a long distance into a tunnel. >> these rebreathers cycle their own air and flush out out carbon dioxide in this case role players deciding who they can save and who they can't. >> does it keep you awake at night? >> they...
Source: archive.org