The longtime head of public affairs at the FBI -- who was a confidant of former director James Comey -- is planning to retire, Fox News has learned. A notice went out this week for a retirement get-together for Michael Kortan scheduled for Feb. 15. Since 2009, Kortan has served as assistant director for public affairs, an influential job that controlled media access. He also served under former director Robert Mueller, now leading the Russia probe. The FBI confirmed to Fox News that Kortan is retiring. It's unclear whether the retirement was long-planned or in any way precipitated by recent...