let s solve this. martha: a massive dust devil spotted outside denver, passing over buildings and traffic, posing no real threat. dust devils form when hot air near the earth s surface rising quickly through a small pocket of lower pressure air from higher above. they are shocking and usually harmless. check that out. no damage or injuries reported in that case. they need a dirt devil to pick all that up. bill: they do. have a few of those in the closet, right? martha: so do i. bill: right on. 15 minutes past the hour. to a jaw-dropping report,