OMG... it's not just coming from FOX. It's also coming from RW pundits. Wow...
Meanwhile your author admits..
The emergence of a number of whistleblowers who have come forward to refute the claims made by some members of President Barack Obama’s administration relating to the September 11, 2012, attack on an American consulate in Benghazi does not directly implicate the White House in a cover-up.
Of course when the "number of whistleblowers" is so small that the author can only cite one on the record you have to wonder who is being hysterical.