Much as I hate to admit it(*), and despite ongoing concerns about the possible risks even when gas extraction is not the objective, I have to agree that there is significant promise in the idea of using fracking technology to increase the feasibility of true geothermal energy.
And perhaps not the least of its virtues is that this would provide an almost immediate re-employment of people and tools that are currently employed in the fossil fuel industry – with far less worries about eventual supply exhaustion and possibly far greater potential geographic range of applicability.
(*) – my (irrational?) resistance being similar to that I feel at the use of medical techniques discovered through the use of (often quite horrifying) unethical experiments