It's never a good sign when the most interesting thing about a viral video is how they spent their money. "Possum Death Spree 2" isn't so much a sequel to the first as a do-over with a slightly brighter color palette: scientist warns of melting permafrost, killer possums unleashed, lots of blood, some tame T&A, the end. Oh, and also, the production is carbon-neutral, which means that one startup bribed another startup so they could......