After Hoover, No FBI Director Has Served Longer than Robert S. Mueller III
By Allan Lengel ticklethewire.com WASHINGTON — Next to the big guy, J. Edgar Hoover, Robert S. Mueller III is the longest serving FBI director. And with Thursday’s announcement of a proposed two-year extension — which seems all but certain Congress will OK — he’ll add to the record. His 10-year term is set to expire…