News that Fox News reportedly paid a former PR executive at the company "approximately $8 million in hush money" after firing him this summer raises questions about why Fox News chairman Roger Ailes apparently feels the need to approve seven and eight-figure payoffs to keep former employees quiet.

After Brian Lewis was escorted out of the Fox News building in July, and Fox made public allegations against him, Lewis' attorney warned that “any confidentiality obligation” he had with the company no longer applied. “Lewis knows many of Ailes' secrets,” noted New York magazine. But the $8 million “hush money” settlement seems to guarantee that Lewis won't discuss his time at Fox.

Lewis however, isn't the only senior Fox News employee who's reportedly been paid handsomely to keep quiet about his or her time working under Ailes.

Lewis' settlement recalls the $10.75 million payoff Judith Regan secured after the former host was fired by then-Fox News parent company, News Corp.* Like Lewis, who at the time of his firing this summer was publicly accused of "financial irregularities," Regan was also the target of a smear campaign, accused of making anti-Semitic comments. But like longtime Fox News veteran Lewis, Regan appeared to cash in by threatening to release damaging information about Ailes and turned her firing into a big payday.  

Specifically, Regan claimed to have a tape recording of Ailes instructing her to lie to federal investigators in order to protect Ailes' longtime friend and political ally, Rudy Giuliani.  The tape reportedly may have played a role in the settlement Regan secured in her wrongful termination suit against News Corp. (Company officials did not deny Ailes was heard on the tape.)

Question: What other news organization spends nearly $20 million in order to keep two fired employees from talking publicly about their time of employment?

From New York [emphasis added]  

Back in 2007, Judith Regan alleged in a lawsuit against News Corp. that a senior executive there urged her to lie to federal investigators about her affair with Bernard Kerik. Kerik had been nominated for the position of Homeland Security Chief under Bush, but was then dismissed after his personal foibles came to light. The executive hoped to keep Regan quiet because Kerik's mentor Rudy Giuliani was running for the Republican nomination, and further embarrassment might injure the campaign. It was a double-punch scandal: News Corp. was revealed simultaneously to have pressured an employee to lie to the government and also to have thrown its weight around on behalf of a presidential candidate. But at the time, the executive in question remained nameless. Now, he's been identified in court documents that have surfaced due to a filing error in a related case. It was Fox News mastermind Roger Ailes.

If Regan received more than $10 million in part because she had a taped recording of Ailes urging her to lie to investigators, what information does Brian Lewis have that warranted an $8 million payoff?

* This piece has been updated to clarify that Regan was fired by then-Fox News parent company News Corp. We regret the error.