The TWiM team discusses microbial DNA found on ATM machines in New York City, and how hydraulic fracturing, or fracking, alters microbial ecosystems deep in the Earth. Hosts:  Vincent Racaniello, Michael Schmidt, Elio Schaechter, and Michele Swanson. Subscribe to TWiM (free) on iTunes, Stitcher, RSS, or by email. You can also listen on your mobile device with the Microbeworld app. Links for this episode Microbial DNA on ATM machines in NYC (mSphere) NYC OpenData Altering deep microbial ecosystems by fracking (Nat Micro) Marcellus Shale Energy and Environment Laboratory Chemicals used for fracking (FracFocus) Marcellus and Utica shale formation map Consequences of fracking (GasBuddy) Image credit This episode is brought to you by CuriosityStream, a subscription streaming service that offers over 1,400 documentaries and non­fiction series from the world's best filmmakers. Get unlimited access starting at just $2.99 a month, and for our audience, the first two months are completely free if you sign up at curiositystream.com/microbe and use the promo code MICROBE. Register today for the 2017 ASM Scientific Writing and Publishing Online Course at bit.ly/swpoc17 Send your microbiology questions and comments (email or mp3 file) to twim@microbe.tv