This is an old story with Fox News and Rupert Murdoch, going back two decades or so. At one point c. 1993-94, Murdoch's New York Post, led by investigative reporter Chris Ruddy, was on the cutting edge in exposing the Vince Foster "suicide" as a farce. Articles were written revealing enough evidence to strongly suspect foul play. At that point, Murdoch and his henchmen, running scared of the Clinton FCC and what it could possibly do to retaliate against his ever-expanding broadcast media empire, pulled the plug on Ruddy. In fact, shortly thereafter, he began cozying up to the Clintons, supporting HRC's US Senate campaign and WJC's "Clinton Global Intitiative."
So now the FOXies are playing the same game for the Obama administration by handcuffing their journalists, making issues that are too "dangerous" for the Administration off-limits for their hired hands. No one should be surprised.
Do not forget that Rush, Sean, Mark and other conservatives have also said nothing of any value on this very issue