Highly researched and detailed information about various kinds of "fracking" and the process involved--so be prepared for some technical language and distinctions. Still quite readable though and has excellent information for anyone interested in learning more about fracking- also known as unconventional oil extraction--and the politics behind it. However, I have to say I don't agree with the conclusion of the book. The author seems to think that fracking (even in its extreme forms) could be safe enough to adopt on a widespread level within the next 2 to 5 years provided the oil industry, government officials and communities work together to properly test, monitor, oversee and manage the process. His advice is to wait until the there are further tests to make the process more fullproof. Although I found the information given was useful in learning more in-depth information about fracking, I don't agree with his more positive outlook about the "promise" of fracking ---that it will lift our general economic level, be the boon in jobs or necessarily maintain our country's power and political clout on the international level. I don't think his premise of cooperation will work. So far I have not seen that the oil industry has shown it can be trusted to monitor the process safely, be truthful with the public on environmental impact reports, be responsible and caring of the welfare of the people living near fracking areas, clean up, repair or recompense after "accidental leaks" or deal honesty with government officials whom they seem to pay off (or sue) to get them to support their agendas. Additionally, I don't agree that alternative forms of energy are too distant to come into play. They have not been supported, tested, tried or funded properly. As fossel fuel is limited. We must have the political will to seek alternatives. My conclusion is that Shale Gas is more peril than promise.