There are lots of independent sources that back up the details presented in the film: http://en.wikipedia.org/wiki/Hydraulic_fracturing_in_the_United_States#ci

There are lots of independent sources that back up the details presented in the film: http://en.wikipedia.org/wiki/Hydraulic_fracturing_in_the_United_States#cite_note-96 http://en.wikipedia.org/wiki/Hydraulic_fracturing_in_the_Uni... Also if the fracking process is so safe why did they have ask for and get special exemption from the Safe Drinking Water Act?