Public university admits to burying study finding no damage to water quality from fracking because funders ‘disappointed’

From Thomas Lifson at The American Thinker Blog:

A three-year study undertaken by the state-funded University of Cincinnati will not be released to the public, because it found no damage at all. This direct contradiction of the goals of many environmentalist groups had to be suppressed. As the lead researcher said:

I am really sad to say this, but some of our funders, the groups that had given us funding in the past, were a little disappointed in our results. They feel that fracking is scary and so they were hoping this data could to a reason to ban it[.]

This is a scandal that goes to the heart of the relationship between science and public policy and the reliability of global warming doomsayers. The scandal was broken in a small town newspaper, the Free Press-Standard of Carroll County, Ohio and only gradually made its way to the national media via Jeff Stier of the National Center for Public Policy Research, Newsweek, and Jazz Shaw of Hot Air.

This is one case that has been discoverd. So one has to ask, how often does this go on and how many other incidence is this true?