Dr. Anthony Ingraffea, Cornell University, joins Thom. Oklahoma was never known for it’s earthquakes – until the fracking boom moved in in 2008. But now – officials say that induced earthquakes may be threatening America’s security. – Thom Hartmann’s Big Picture

Thom is a four-time Project Censored-award-winning, New York Times best-selling author. His national daily progressive radio talk show is distributed to radio stations nationwide by Westwood One, Pacifica, and Free Speech TV. More people listen daily to the Thom Hartmann Program than any other progressive talk show in the nation.