This is false information about Mueller.
Mueller didn't resign from the FBI in 2013 because he was disgusted. In fact the opposite is true.
Mueller's 10 year term at the FBI expired in 2011. An FBI director is supposed to only serve one term. Instead of leaving in 2011, Mueller gladly accepted an exemption and a two year extension by Obama.
So he's covered up the Uranium Deal and the rest of it since 2009.
Whoever originated your above information is probably trying to protect Mueller.
I just made post #7 a little more readable, I take no responsibility for its content.