please join me in welcoming bethany mclean. [applause] >> thank you all so much for coming. i am going to talk for half an hour and come back to the probably and open up to questions. the probably is because from a young age in grade school i detested speaking out loud. i trained myself to speak as quickly as i could which means i talk really fast because i can't seem to one train myself so somebody in the audience yells slow down, i will take it is a helpful suggestion, not a root interruption. i will really try. anyway i wrote this book because i was really impressed with two things. one was what i see is a big dichotomy. fracking, getting oil and gas out of shale, is changing the world. we have gone from congressional hearings a decade ago about us shortages of oil and natural gas to literally beating our chests about american energy independence, even energy dominance, donald trump has called it. the economists i spoke to, said shale is one of the top five things reshaping geopolitics and it is. you have seen how the us is the biggest producer of crude oil topping russia