Here’s a thought experiment: let’s suppose NBC News were covering a scandal involving a household-name public figure–at the NFL, say, General Motors, the White House–and the organization that figure belonged to said, sorry, it was going to handle the investigation itself. Don’t worry: there would be an “internal review,” they would put really good people on it, and if it turned out there was anything to be concerned about, they’d be sure to let everyone know!
Would that be good enough for NBC News? Would it be good enough for managing editor Brian Williams? I sure hope not.