Penn State has examples of the institutional ignoring of facts (or at least sources of facts) in both the Paterno/Sandusky scandal and their investigation of Michael Mann.
Now what most people would think of as ignoring facts in the Paterno/Sandusky case would be coach Joe Paterno, president Graham Spanier, vice president Gary Schultz, and athletic director Tim Curley ignoring sex crimes by Jerry Sandusky and trying to keep them under wraps. But Sandusky got indicted and convicted, Paterno got fired, and Spanier, Schultz and Curley each got convicted of child endangerment. Then Penn State hired a former FBI director, Louis Freeh, to write a report to explain it all (for $8 million). For the public, the monster was caught and the institutional miscreants were punished. It all looks pretty tidy, unless you've been reading John Ziegler's site, Framing Paterno, or Mark Pendergrast's book, The Most Hated Man in America.