of our crucial national infrastructure. but if it does happen there, we will never be able to say it was a surprise. joining us now is jeremy boke, director of the oklahoma geological survey. thank you very much for being with us tonight. i appreciate having you here. it s a pleasure to be here, rachel. i know it is an unscientific and probably therefore sort of offensive thing for me to say, the earth doesn t like it. talking about the injection of fracking waste fluid. but is everybody on the same board everybody on board now with the fact that these are manmade earthquakes and we can essentially start and stop them by whether or not we do this kind of injection behavior? yes, well, i haven t done any polling on it, but most of the technical community agrees that yes indeed. we took a position in april as the oklahoma geological survey a couple of months before i came on board and said yes indeed, there is a connection between the injection of water from oil