BuzzFeed's John Herrman says events like Hurricane Sandy show that "Twitter Is A Truth Machine":

Twitter beckons us to join every compressed news cycle, to confront every rumor or falsehood, and to see everything. This is what makes the service so maddening during the meta-obsessed election season, where the stakes are unclear and the consequences abstract. And it’s also what makes is so valuable during fast-moving, decidedly real disasters. Twitter is a fact-processing machine on a grand scale, propagating then destroying rumors at a neck-snapping pace. To dwell on the obnoxiousness of the noise is to miss the result: That we end up with more facts, sooner, with less ambiguity.

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