The Army wants to 3D print an entire barracks to save time and money

That could be interesting and I can see it being useful after a disaster for housing as well!

Yeah...I heard about this... El Paso @ Ft. Bliss... I dont think this is gonna work out. Most of the buildings around Beaumont on Ft. Bliss right now are falling apart in the heat, sun and dry arse humidity. If the Army dont want to take care of them after 50-80 years... what do you think plastic buildings will look like in 20-30 years? They are gonna sun rot.

Unless they use concrete in the 3d design... 3d housing units in plastic are just waiting for the sun to rot them or a terrorist to blast them into shitting balls of burning plastic...