The U.S. Marine Corps reports the deployment of a new crowd-control weapon that promises to make riots much more slippery affairs.
Invented at Southwest Research Institute, the Marines’ new Mobility Denial System (MDS) is a non-hazardous chemical spray weapon that disperses a thick, slippery gel onto asphalt, concrete, wood, and even grass. The result is a lot of pratt falls for the rioters and spinning wheels for enemy vehicles.

