MythBusters - Season 10 Episode 2 Fire vs. Ice Failure is always an option.
Overview: Adam and Jamie tackle an internet sensation about an epic duel between a flamethrower and a CO2 fire extinguisher, while Kari, Tory and Grant get high-tech find out if a dust cloud created by a foursome of 4x4s can really blind the all-seeing eye of the latest military spy drone.