two leaders of the muslim faith under arrest, charged with aiding terrorists. we'll have a live report coming up. and many of you have been sending in and asking for information on social media. you can reach out to us on twitter, on facebook, cnn.com/don, and on foursquare.com/donlemoncnn. a lot of times, things are right underneath our feet, and all we need to do is change the way we're thinking about them. a couple decades ago, we didn't even realize just how much natural gas was trapped in rocks thousands of feet below us. technology has made it possible to safely unlock