This works because people that see this movie are touched. They are touched because they have been directly affected by hydraulic fracturing or they want to be a voice for those that have been and don’t want to become a silent statistic as well.

The bromides themselves are not a public health risk - they account for a tiny part of the salty dissolved solids that create an unpleasant taste in water at elevated levels.  ...But bromides react with the chlorine disinfectants used by drinking water to form brominated trihalomethanes (THMs), a volatile organic compound.

An Insurance industry blog by Jared Wade. Strange Disasters includes a story about a crater in Turkmenistan caused by scientific laissez-faire about natural gas extraction.