Regarding Brian Williams and his memory confusion :)
Most of the commentary I read was pretty much along the same lines. "Shock". "OMFG". "The death of NBC News" etc. I had the complete opposite reaction actually. As someone who has been involved in the "news" business for my entire career, my reaction was more or less, "duh"!
For anyone to believe that integrity is a guarantee in the news business these days, in my humble opinion, is naive. I have witnessed countless situations in my career where journalists stretched the truth, wrote from an incredibly personal bias, or, in some occasions, just flat-out lied. And you know what, everyone knew it and everyone accepted it. It didn't make it right or wrong, it's just the way it is. They are in the business of generating readership and it's an "eat what you kill" culture.
For media like the New York Times or Wall Street Journal (and of course broadcast is the worst) to deny this, is laughable.
So when Brian Williams or Dan Rather stretch the truth, it's part of the game...unfortunately. The truth is that you shouldn't be surprised or upset. Just because they appear in the same chair or studio as Walter Cronkite or Edward R. Murrow doesn't mean they are. Those days are long, long gone.
As traditional media continues its rapid and painful decline, the transformation that is happening is truly breathtaking. News site like Vice, Buzzfeed, Complex and Vox do as good of a job reporting on pop culture and current events as the old guard. And you know what? They also have their own bias and half-truths.
Final point is that as more and more companies are recognizing the power of creating their own content and the old guard media folks roll their eyes and laugh at this supposed "puff journalism," I for one say BULLSHIT!